from Hacker News

Ask HN: What are you working on? (May 2025)

by david927 on 5/25/25, 7:36 PM with 1087 comments

What are you working on? Any new ideas that you're thinking about?
  • by creakingstairs on 5/26/25, 12:37 AM

    An open-source, self-hostable app for sending out newsletter to your friends and families. I'm mostly making it for myself because I want to share what I've been up to and family photos, without uploading it to Facebook or whatnot.

    At the moment, the flow goes like this:

    1. During the week, write posts for things that have happened.

    2. Posts can be assigned to groups. (family, friends etc).

    3. At the end of the week (or month), the app automatically creates a newsletter for each group by pulling posts assigned to each group. Add some final touches yourself and send it off!

    4. Every newsletter will come with a link to download all images.

    I'm trying to design it to be as old people friendly as possible which meant making the experience as simple as it can get. This made me settle on email newsletters. Emails are ubiquitous, have been around and will be around for a while. It's easy to sign up and things are just pushed to you instead of having to go to another app.

    Another thing I want is multilingual support as my family is Korean my in-laws are not.

    I'm hoping to get an MVP working this week and get some testing done with my own parents and in-laws.

  • by acidburnNSA on 5/25/25, 8:50 PM

    I recently quit my salary job after 16 years and am consulting in nuclear engineering now. I have a few passion projects that I'm working on (between the somewhat substantial consulting work that came out of the woodwork):

    - Nuclear Reactor Starter Kit --- an open source set of procedures, processes, templates, and maybe even some IT advice that should help newcomers start companies with nuclear quality assurance programs easily and quickly while also making a new format in which nuclear companies can share lessons learned in efficiency.

    - Reactor Database --- similar to the iaeas PRIS but focused on reactor development rather than power reactors. Will include nuclear startup company tracking with details gleaned from statements and maybe extrapolated where necessary from simple simulations. Will include things like fuel cost and licensing progress. This way people can more easily separate vaporware from real nuclear, and keep track of promises vs delivery.

  • by z3ugma on 5/26/25, 1:54 AM

    Nest Thermostats of the 1st and 2nd generation will no longer be supported by Google starting in October. I'm working on an enclosure-compatible open-source version of the 2nd gen Nest thermostat. It reuses the enclosure, encoder ring, display, and mounts of the Nest but replaces the "thinking" part with an open-source PCB that can interact with Home Assistant
  • by rorylaitila on 5/25/25, 8:56 PM

    I've been collecting and digitizing vintage print advertisements and publishing them (https://adretro.com).

    I have tens of thousands of ads in the collection and it would take me many lifetimes to complete, but I've been using AI to extract and catalog the meta data. I can get through about 100 ads/day this way.

    One of my favorite ads, a computer from 1968 that "answers riddles": https://adretro.com/ads/1968-digi-comp-digi-comp-1-table-top...

  • by aantix on 5/25/25, 9:36 PM

    A new YouTube app/player, for my kids.

    It allows us to control the algorithm. It’s all LLM translating to YouTube search queries under the hood.

    Visually it looks the same. The suggested videos come from predefined buckets on topics they love.

    E.g. 33% fun math, 33% DIY engineering, 33% creative activities.

    Video recommendations that have a banned word in the title/desc don't get displayed e.g. MrBeast, anything with Minecraft in it, never gets surfaced.

    For anyone interested in using it, send me an email.

    I'll put you on my list. And you can contribute ideas to our community Google Doc.

    jim.jones1@gmail.com

  • by BSTRhino on 5/25/25, 10:26 PM

    https://easel.games

    A game engine that lets you code multiplayer games without coding the multiplayer! My idea was to put multiplayer into the fabric of the programming language itself. This allows the engine to automatically turn your game into a multiplayer game, without you needing to learn anything about networking or synchronization. I imagine there are lots of people who have the talent and creativity to create a multiplayer game but don't have the interest or patience in learning how to code multiplayer, and so that's who this is for!

    I've been working on this for 3 years and there were lots of tricky parts rolling back and deterministically executing a whole programming language, but it's working now! My next phase is to increase the breadth of features so better games can be made with it!

  • by funvill on 5/26/25, 4:36 AM

    Art project. Counter Productive

    A random button in a park with a countdown timer.

    Instructions:

    - Press the button to reset the 24-hour countdown timer.

    - If the timer ever reaches zero, the project ends and the project will be removed.

    - To keep the project alive — press the button

    Its been running for 56 days with 820 button presses.

    Write up: https://blog.abluestar.com/projects/2025-counterproductive/

    Stats page https://blog.abluestar.com/other/counterproductive.html

  • by ayaros on 5/25/25, 10:06 PM

    A web os; it's full recreation of the Lisa Office System GUI in Javascript. The entire thing is output to a single canvas element, which has forced me to write a number of the UI components from scratch that I'd normally take for granted. It's got an IndexedDB filesystem, and it's got apps. I'm almost done working on the first real app for it - a word processor akin to LisaWrite. Once I roll that out, I intend to do a ShowHN post.
  • by jesse__ on 5/26/25, 3:43 PM

    I've been working on a 3D voxel-based game engine for like 10 years in my spare time. The most recent big job has been to port the world gen and editor to the GPU, which has had some pretty cute knock-on effects. The most interesting is you can hot-reload the world gen shaders and out pop your changes on the screen, like a voxel version of shadertoy.

    https://github.com/scallyw4g/bonsai

    I also wrote a metaprogramming language which generates a lot of the editor UI for the engine. It's a bespoke C parser that supports a small subset of C++, which is exposed to the user through a 'scripting-like' language you embed directly in your source files. I wrote it as a replacement for C++ templates and in my completely unbiased opinion it is WAY better.

    https://github.com/scallyw4g/poof

  • by catchmeifyoucan on 5/25/25, 10:20 PM

    I've been working on an e-ink laptop. I wanted a machine I could stare hours at and feel okay about it. I didn't seem to find a device like that out there.

    I'm designing everything from the chassis to the software OS. E-ink has its own design constraints. I'm building 5 apps for it: a browser, reader, mail, writer and code editor. It's still a ways to go. Here's a picture of what I have so far:

    https://www.heyraviteja.com/kitiki.png

  • by michelangelodev on 5/25/25, 10:43 PM

    https://www.saintbeluga.org/

    I was a YC founder in 2006 and still do software engineering and data science full-time, but on the side I also do Christian apologetics, helping fellow engineers/scientists/mathematicians seek answers to life's deepest questions.

    Some cool articles for the HN crowd:

    - My interview of Evan O'Dorney, a three-time Putnam Fellow and two-time IMO gold medalist, who converted to Catholic Christianity: https://www.saintbeluga.org/veritas-part-i-conversion-of-a-p...

    - In-depth scientific overview of Eucharistic miracles: https://www.saintbeluga.org/eucharistic-miracles-god-under-t...

    - Conversion testimony by the Chief Scientist at NASA JPL: https://www.saintbeluga.org/veritas-part-iii-bellows-of-aqui...

  • by pasxizeis on 5/26/25, 9:33 AM

    A "Postgres lock diagnostics" tool for migrations. We've been bitten a few times, by seemingly innocent migrations that ended up acquiring locks we did not expect (yes, RTFM).

    So I thought: what if, when you opened the PR, you had a tool that actually executed your migrations, saw what locks they acquired (in runtime) and then reported it as a comment to your PR? This would provide you with yet another data point you could use to reason about whether your migration is safe to deploy or not. For example:

        ALTER TABLE users ADD COLUMN email TEXT:
          acquired AccessExclusiveLock on relation `users`
    
    It does this by opening a transaction, executing the statement, and observing the `pg_locks` view from _a different_ connection before the initial transaction is rolled bac (or committed, depending in the flags you passed). The idea is to be able to use it as a CLI, as a library or with a ready-made GitHub Action (which will take care of commenting in your PR).

    It's in early-stage and very much a PoC yet, but I think there's merit in the idea.

    https://github.com/agis/pglockanalyze

    P.S. Also, an excuse to learn Rust - so any feedback from Rust ppl more than welcome

  • by carpo on 5/25/25, 11:16 PM

    Ive almost finished the first version of a desktop video library app I've been writing for myself. I had the idea last year, but the cost of sending images to an LLM made it too expensive (to run over about 1500 videos), but now it's fairly reasonable.

    In the app you pick a folder with videos in it and it stores the path, metadata, extracts frames as images, uses a local whisper model to transcribe the audio into subtitles, then sends a selection of the snapshots and the subtitles to an LLM to be summarised. The LLM sends back an XML document with a bunch of details about the video, including a title, detailed summary and information on objects, text, people, animals, locations, distinct moments etc. Some of these are also timestamped and most have relationships (i.e this object belongs to this location, this text was on this object etc). I store all that in a local SQLLite database and then do another LLM call with this summary asking for categories and tags, then store them in the DB against each video. The App UI is essentially tags you can click to narrow down returned videos.

    I plan on adding a natural language search (Maybe RAG -- need to look into the latest best way), have half added Projects so I can group videos after finding the ones I want, and have a bunch of other ideas for this too. I've been programming this with some early help from Aider and Claude Sonnet. It's getting a bit complex now, so I do the majority of code changes, though the AI has done a fair bit. It's been heaps of fun, and I'm using it now in "production" (haha - on my PC)

  • by jamesfly on 5/26/25, 6:07 AM

    The second version of https://www.physician.fyi/ , a database of doctors and other medical practitioners with their disciplinary actions for patients to check. In this version, I’m expanding it to include all 6.5 million practitioners in the US, and integrating more data like how much doctors have been paid by drug/device companies. I’m planning on adding patient reviews/complaints too.

    It’s the biggest and dirtiest dataset I’ve ever worked with, so it’s been interesting to figure out practical solutions to run things fast and generalize cleaning tasks. Of course it’ll be impossible to get every case (I can only match about half of the state licenses to national records at the moment), so I’ll have to figure out a user-edit/consensus system for the rest.

  • by ml- on 5/25/25, 9:58 PM

    Love these threads..

    Decided to do an extended sabbatical after being part of one of the many tech layoffs the last years, and I'm thus working on things I like, instead of things that pay..

    Collecting and cataloging craft beer venues from around the world, at https://wheretodrink.beer Still a WIP, and it's not trying to be the most extensive list, but I want it to be a substantial list. Once I reach a certain maturity in the data I'll probably look to spawn minor projects off from the data set.. have a couple ideas already that I'll just keep to my self for now :D

    I also had a set of left over domains relating to beer that I'm offering up for use with BlueSky handles, and beer related link pages at https://drnk.beer - a bit on the back burner.

  • by mingodad on 5/25/25, 9:36 PM

    I'm collecting a collection of PEG grammars here https://mingodad.github.io/cpp-peglib and Yacc/Lex grammars here https://mingodad.github.io/parsertl-playground/playground both are wasm based playgrounds to test/develop/debug grammars.

    The idea is to improve the tooling to work with grammars, for example generating railroad diagrams, source, stats, state machines, traces, ...

    On both of then select one grammar from "Examples" then click "Parse" to see a parse tree or ast for the content in "Input source", then edit the grammar/input to test new ideas.

    There is also https://mingodad.github.io/plgh/json2ebnf.html to generate EBNF for railroad diagram generation form tree-sitter grammars.

    Any feedback, contribution is welcome !

  • by greentec on 5/25/25, 10:55 PM

    https://sublevelgames.github.io/blogs/2025-05-24-armor-games...

    I analyzed 7 years of Armorgames.com data (999 games) to understand web gaming market trends.

    Key findings that might interest fellow developers:

    User standards are rising: Average ratings dropped from 7.02 (2018) to 6.45 (2025), but the percentage of high-quality games (8.5+ rating) actually increased from 12.3% to 14.7%. This suggests quality polarization rather than overall decline.

    Genre trends: Rising: Idle games, Strategy, RPGs (deeper gameplay mechanics) Declining: Traditional arcade/action games Stable: Puzzle and Adventure (web gaming staples)

    Innovation wins: The highest-rated "hidden gems" all had one thing in common - innovative mechanics rather than genre variations. Games like "Detective Bass: Fish Out of Water" (9.3 rating) and "SYNTAXIA" (9.1 rating) show originality still pays off.

    Market maturation: The correlation between rating and popularity is surprisingly weak (0.126), suggesting quality ≠ virality. However, play count strongly correlates with favorites (0.712).

  • by benhoyt on 5/25/25, 8:47 PM

    A program that will play chess (written in Go). My 18yo daughter can now beat me at chess (not that I'm any good). I figured if I can't beat her, I'll see if I can write a program to beat her instead. My idea for v1 is that I'd write the algorithm myself, without looking up anything about how to write a chess program (I'm sure such literature abounds). I've just about finished v1; still a few bugs to iron out. To be honest, I didn't find it all that fun, mainly because of all the special cases (all the castling rules and the like).
  • by heliographe on 5/25/25, 10:55 PM

    I just shipped a camera app for iPhone dedicated to Bayer RAW capture (that's the true, unprocessed sensor output of your device - not Apple's ProRAW which is already demosaic'd and has noise reduction, etc).

    https://bayercam.app

    I had fun with the interface - it's themeable, and inspired by classic cameras: lets you quickly switch between full auto/half auto/full manual modes with dedicated dials.

    Going to add more features in the coming months, but the #1 focus is keeping it super simple and blazing fast.

    Given that virtually all processing pipelines these days stack multiple shots to create a photo, as far as I'm aware this is the only way of getting a "traditional" single-exposure photo on iPhone, where the shutter speed is actually meaningful.

    There are other camera apps that support Bayer RAW capture, but those support a bunch of other formats, and you probably don't want Bayer RAW for most of your shots anyways, so for my own workflow it's better to have a dedicated app that I can launch really quickly rather than tap around in menus.

  • by nsarrazin on 5/26/25, 2:05 PM

    On my free time I've been making a small "game" where you control a spacecraft using a 6502 computer. You can control things like thrusters, antennas and read data from star sensors, gyros, etc. using memory mapped I/O directly and you can't control anything directly.

    The whole thing works pretty well, it's built using Godot & a custom Rust extension with the 6502 emulator & assembler. It can even be exported to the web so you can write your code using a CodeMirror editor and send it to the game in the browser.

    Now, as expected, the hard part is making it fun. Just giving players an empty code editor and a manual for the sensors/actuators doesn't seem great, and there's also no goal for now. I'd like to take inspiration from Shenzhen I/O to build a sense of progression by tackling more and more difficult control challenges maybe?

    It also supports running multiple computers at once so I think there's some fun potential for a "multiplayer" mode where you try to achieve some objective (scanning X, mining Y) against other players by sending spacecrafts with your code on them and all the crafts would run on one server. Anyway I'm curious if people would be interested in such a game!

  • by fizzbuzz07 on 5/26/25, 9:34 AM

    Reimplementing from scratch every major idea in modern deep learning, to help people transition into deep learning research.

    https://github.com/tanishqkumar/beyond-nanogpt

  • by T0Bi on 5/25/25, 11:07 PM

    Planning a hobby alpaca farm (3-4 alpacas), very early stage.

    Everything from farm related stuff (water, food, shelter, etc.) to self-sufficiency (solar, etc.) to real time monitoring (which cameras, affecting power supply).

    Who knows if it'll ever happen, but just planning everything in detail is a lot of fun. Especially with weird regulatory constraints where I'm living, there's a lot to watch out for.

    Example: Solar panels at >3m height need building permits. Snow in winter means panels should be set up at a specific angle. So my initial plan of putting the panels on my 2.5m high carport doesn't work. Either lower carport, lower angle, different place or getting a building permit.

  • by colinnordin on 5/26/25, 11:27 AM

    I was reading a lot of technical books and kept highlighting things I wanted to remember — but I rarely went back to review them. The notes just sat there, on my Kindle or in the reading app.

    So I started building something simple: a tool that lets me turn highlights into flashcards with as little friction as possible.

    Just select text on your iPhone, share it with the app, and it creates a flashcard using AI — a Q&A pair and a short summary. You can browse cards in the app, or show them on your Home Screen, Lock Screen, or watchface of your Apple Watch.

    This is my first iOS app, and building it has been a great learning experience. I’m using Supabase for the backend which have been mostly great.

    Check it out: https://komihag.com

  • by bengold14 on 5/25/25, 10:39 PM

    RankPic (https://www.rankpic.info) is an app to help users crowdsource their best photo. I've been building over the past 3 years & it's grown into a lovely community of people who help each other pick their best pictures for dating apps, professional photos etc.

    I've seen some pretty fun novel use cases, such as (multiple!) people using it to pick out glasses, wedding invites & so on.

    I recently completed a leaderboard function that cross compares photos from different tests using Claude, which was really impressive and scared me for my day job..

  • by ccvannorman on 5/25/25, 11:31 PM

    Mathbreakers 2 (https://mathbreakers.com)

    A 3D game to help students in grades 5-8 learn Arithmentic, Fractions, Geometry, and Algebra.

    50% or more of middle school students experience math anxiety, and it's no wonder that so many people grow up believing, "I'm not a math person." Math can be incredibly fun and beautiful if approached and experienced the right way. Mathbreakers is a vibrant, interactive world where all game mechanics are built on intrinsic mathematical properties, so simply by playing the game, a foundation of understanding of those concepts is built.

    We're doing early prototype testing now with a planned launch in September 2025. The game engine is PlayCanvas (engine-only) and the platform is WebGL (Mac/PC/ChromeOS).

  • by archiepeach on 5/25/25, 10:13 PM

    My collection of art, philosophy and poetry apps. They have previously just been on iOS but I just finished the Kotlin port of the art one, so will be releasing that soon.

    The poetry one is react native. Art and philosophy ones are swift/kotlin. I wanted to see if you could use LLMs to effectively create a cross-platform app. The idea behind react native was that you write it once in an approachable language, then the framework compiles to native app code. In 2025, the approachable language you code in is English, and the LLM now generates native app code.

    It was generally a success and I feel less of a need of the development overhead of react native these days.

    https://apps.apple.com/gb/app/for-arts-sake/id6744744230

    https://apps.apple.com/gb/app/daily-philosophy/id6472272901

    https://apps.apple.com/gb/app/the-poetry-corner/id1602552624

  • by ecralx on 5/27/25, 11:59 AM

    A small tool I'm building for myself because I often forget what I actually did during the week, especially when it's time to summarize it, do my weekly review, or prepare for 1:1s or evaluations.

    The idea is simple:

    1. On the days I work, I get an email one hour before the end of the day (as I usually use emails as todo lists).

    2. I reply to that email with what I did just like I would in a personal journal.

    3. My reply gets saved and shows up on a calendar. It's nothing fancy, just the content of the email on the day it was written.

    4. When I need to prepare for a performance review or a manager check-in, I can generate a clean report based on my past entries with summaries written by AI

    That’s it. No login every day, no new tool to open. Just a little trace of my work, saved quietly, and summarized when needed.

  • by DamnInteresting on 5/26/25, 1:49 AM

    I've been trying to put the finishing touches on my daily word game Omiword (https://www.omiword.com/), but I've been waylaid by Stripe because they decided that a simple daily word game is a "restricted business," and they shut down my account.[1]

    Now I need to figure out an alternate payment handler, or just give up on my modest monetization plan where players can pay a small one-time fee to unlock all of the archived puzzles. It was never going to make a fortune, but it would have been nice to offset some of the hosting expenses.

    Don't use Stripe. They shit on you just because they can.

    [1] https://news.ycombinator.com/item?id=44075038

  • by aag on 5/25/25, 10:31 PM

    I got tired of using Markdown and Org mode for writing web pages last year. They're so limited, and so full of odd gotchas and limitations. Instead, I started writing raw HTML, but with a post-processing step to add titles, headers, footers, and CSS, and to do macro-like things, e.g. insert pull quotes and YouTube viewers. But raw HTML is not great, either. I'm now working on an editor that lets me use Emacs-style commands and key bindings (e.g. character, paragraph, sentence, and word motion, deletion, and transposition; Emacs-style undo/redo; incremental search; and case conversions) to edit HTML in a WYSIWYG view. The new editor does it all in a Webkit-based HTML view built with Tauri. Editing this way is so much more pleasant and more powerful. I plan to publish it under an MIT license once it's good enough.
  • by plankers on 5/25/25, 9:06 PM

    modeling the heat transfer modes in Enceladus' icy shell that rests above its liquid water ocean. previous modeling has assumed that all heat transfer is conductive, but using dynamical simulations i've shown that under certain conditions convection can occur at in the shell. specifically, these conditions are having a thick enough ice shell, the right amount of porous fluffy ice deposited from the plumes at Enceladus' south pole which jet water into space through fissures in the crust, and the right thermal conductivity of this porous layer.

    now i'm starting on adjusting the model to include the liquid water ocean underneath the shell and observe the effect of changing viscosity gradients in the equilibration of the ocean and ice shell, as well as adding in compositional impurities (chloride brines) and tidal heating effects.

  • by hopeadoli on 5/25/25, 11:21 PM

    A mobile app called Trip o'clock (https://tripoclock.com)

    An AI-trip planner with a nice twist. It shows you everything you need to know about a place even before getting there: Images, a great summary, cost of living broken down weather conditions etc. It also comes with the usual features you'll expect in a trip planning app (ai itinerary suggestions, travel expenses tracker, group chat for group trips, google places integration for looking up places to eat, things to do, healthcare places and transportation centers, and a private travel checklist). You should check it out today!

  • by czhu12 on 5/26/25, 12:39 AM

    I've been able to have the privilege of working at a company that is cool with me open sourcing everything we build along the way -- its a nice perk and it also makes me motivated to work on stuff outside of work :)

    The two things I've open sourced that I've been moonlighting after hours for:

    https://canine.sh/ - An open source Heroku alternative, 10x cheaper. Got sick of paying those prices

    https://hellocsv.github.io/HelloCSV/ a free open source flatfile alternative

  • by carlnewton on 5/26/25, 6:06 AM

    I'm still working on Habitat. It's a free and open source, self-hosted social platform for local communities. The plan is for it to be federated, but that's a while off yet. My most recent addition has been public moderation logs to keep the admin accountable.

    - The idea: https://carlnewton.github.io/posts/location-based-social-net...

    - A build update and plan: https://carlnewton.github.io/posts/building-habitat/

    - The repository: https://github.com/carlnewton/habitat

    - The project board: https://github.com/users/carlnewton/projects/2

  • by mikhmha on 5/26/25, 12:51 AM

    Continuing to work on my MMORPG made with Elixir and Godot. The game has been live for 2 months but there's still lots to do. A lot of the architecture revolves around the AI simulation run in Elixir. I started working on this game after quitting my job on a whim (18 months ago!). I've started to get some daily players which is exciting.

    https://swarmmo.games The game is playable in browser! And theres no sign-up required to try it out.

  • by nullderef on 5/25/25, 8:32 PM

    I was building an intentionally annoying app against doomscrolling [1]. Being technical, I tried to focus on product, marketing and more instead of the implementation. But I still didn't ship quick enough. It's so hard. Only after a few months did I start with marketing, and it hit me like a wall.

    So I'm giving a try to a project which started with marketing. No implementation, just a TikTok to see if people like it. And holy crap, we got 75k views!

    The new idea [2] is easier to explain (1 pushup = 1 minute of scrolling) and already has a community. Plus, not working alone helps me focus on what I'm good at: programming. I don't regret learning about other areas but doing marketing for a living is not my thing.

    I'm not getting rid of SpeedBump, though. It's a fun side project and it does help people :)

    [1] https://speedbumpapp.com

    [2] https://pushscroll.com

  • by atlasunshrugged on 5/26/25, 5:37 AM

    I'm just finishing up a book called Rebooting a Nation on how the country of Estonia modernized so quickly after independence from the Soviet Union and became a leader in tech and e-government. It should start shipping on Amazon in the U.S. later this week! Happy to chat with folks who have questions about the publishing industry from an authors perspective (I ended up signing with Hurst in the UK which distributes through Oxford University Press).

    https://shorturl.at/LKMxS (Amazon link)

  • by gudzpoz on 5/25/25, 10:16 PM

    An "JIT interpreter" for Emacs Lisp [1] with Graal Truffle [2] in Java. And it is really amazing how the frameworks these days simplify building a JIT runtime for a language. Currently I'm working on a pdump[3]-like feature for it.

    [1] https://codeberg.org/gudzpoz/Juicemacs/src/branch/main/elisp

    [2] https://www.graalvm.org/latest/graalvm-as-a-platform/languag...

    [3] https://www.gnu.org/software/emacs/manual/html_node/elisp/Bu...

  • by bdxn on 5/25/25, 11:25 PM

    OpenCLI - https://github.com/bcdxn/opencli

    A document specification for defining command line interfaces.

    It's really just a fun side project to get more familiar with Go. The goal is to be able to generate boilerplate code in a few languages/frameworks and to generate documentation in a couple formats.

  • by Alex-Programs on 5/25/25, 10:24 PM

    I'm working on https://nuenki.app. It's a browser extension that translates sentences at your knowledge level into the language you're learning, so you learn through immersion as you go about your day.

    I've been doing a lot of experiments evaluating LLM translation performance, and I used what I learnt (that LLMs make mistakes, but different LLMs make different mistakes, and they're better at critiquing translations than producing them) to make a hybrid translator (https://nuenki.app/translator) that beats everything else.

    And I was invited to do a talk about that to a company, which was really cool! I'm 19, doing this in my gap year before uni.

  • by popupeyecare on 5/26/25, 11:39 AM

    I’m working on https://postcardlove.com — a super simple site that lets you send real postcards using a photo from your phone. No login, just upload, write, and send.

    It started because I wanted to send my sister an old photo for her birthday, and instead of using CVS or Shutterfly like a normal person, I ended up building it using Bubble and Lob.

    Now I’m exploring the B2B angle — a friend asked if I could do postcard mailings for her medical practice. Curious if anyone here has experience with postcards for outreach or marketing?

  • by l72 on 5/25/25, 9:32 PM

    I am working on a music recommendation algorithm for your self hosted music. Think of it like your personal pandora.

    Backend is already working: Boldaric https://github.com/line72/boldaric

    And a simple iOS native front end (which I haven’t submitted to the App Store yet). Tor Jolan https://github.com/line72/torjolan

    It has been interesting tweaking the algorithms and models for various similarity searches.

    I really like that it focuses on music characteristics and not metadata, so popularity of a song/artist isn’t even taken into account. This has really helped me explore my rather large music collection especially when I get stuck in a rut of listening to the same things.

  • by jumski on 5/26/25, 10:07 AM

    I’m tinkering on pgflow – an open-source, DAG-based workflow engine that uses Postgres to orchestrate workers on top of PGMQ queues. It seamlessly integrates with Supabase (no new infra needed!) and executes code on Edge Functions using custom, serverless task queue worker. All the current and past state of all executions is stored in Postgres and can be queries with simple SELECTs and flows can be started from within the db (think: pg_cron, triggers).

    I have strong focus on db consistency and Type safety between steps.

    ### Built so far – core SQL orchestration (state machine, retries, observability, queue management) – strictly typed TypeScript DSL + compiler that turns flow definitions into migrations – a minimal Edge Function worker that polls, executes and reports back

    ### Current focus I’m heads-down on a dedicated client library. It leverages Supabase Realtime to stream events and progress of each flow run back to the browser, while having strict compile-time safety for flows defined with the TypeScript DSL.

    ### Next on the roadmap - Fanouts for processing arrays of data in parallel, with per-item retry logic. - SQL-based conditionals/branching that leverages JSONB containment operator and step outputs

    Docs: https://www.pgflow.dev/concepts/how-pgflow-works/ Repo: https://github.com/pgflow-dev/pgflow

  • by piker on 5/25/25, 8:54 PM

    https://tritium.legal

    Tritium is an IDE for corporate lawyers. Draft Word docs, review PDFs, redline all in a single application. It's written in Rust using a modified version of egui. Immediate mode has some interesting tradeoffs that I'd love to discuss on here. Also the web/desktop dichotomy presents a lot of interesting opportunities and challenges where data governance is concerned. I'd love your thoughts or to share mine!

  • by bibin765 on 5/26/25, 3:35 AM

    I am currently working on thethoughtcatcher.com

    It started as a side project to explore the latest AI trends. Now it’s something we use daily — and others are starting to as well.

    Thoughtcatcher is a lightweight, AI-powered notes + reminders app that acts like a memory companion.

    It helps you: - Capture raw thoughts and auto-tag them using AI - Set smart reminders triggered by context and meaning - This was a game changer for me personally - Search and chat with your notes like a conversation — not just by keywords, but by intent

    Example? You’re walking out of a meeting and think: “We should revisit that pricing model after the new release.” You jot it into ThoughtCatcher — no structure, no stress. A week later, right before the next sprint planning, it reminds you. Just when you would’ve forgotten — it remembers.

    What started as a learning project has grown into something useful — not just for individuals, but for teams too.

    We’re now exploring B2B use cases like: • Project knowledge management • Shared team notes with smart search and chat • Meeting follow-up insights and reminders • AI-powered team memory for client or product work

    Want to try it out? Android users: Download the app iOS users: Use the PWA — just “Add to Home Screen”

    Still early. Still learning. But ThoughtCatcher already feels like something I wish I had years ago.

    Would love your feedback or thoughts. And if you’re building something similar— let’s connect

  • by nicbou on 5/29/25, 2:51 PM

    I'm still working on a complete overhaul of German health insurance advice for immigrants. It's a really boring topic BUT a fascinating problem.

    The system is complex. Choosing the best option is difficult. Understanding the timelines, the required documents, and how to prove coverage for a visa application or school enrolment is super complex. I'm trying to streamline the whole thing.

    I released phase one yesterday. It's a simple overhaul of the text advice plus a new health insurance calculator. I also paired up with a health insurance broker to give more personalised advice, since everyone needs a different recommendation.

    It's here: https://allaboutberlin.com/guides/german-health-insurance

    I'm now working on phase two: covering the exact process of getting insured for a visa application. I really want to walk people through the exact order of things, with detailed steps and timelines. The calculator will get a hell of a lot more complicated.

    Phase three is compressing all of that. Once I have a good idea of how things work and where friction can be reduced, I'll simplify and automate as much of it as possible. It should turn a messy, complex and confusing process into a fairly straightforward thing.

    I feel like no one is really doing this yet, and I'm surprised at how achievable it is.

  • by runarberg on 5/25/25, 8:42 PM

    I am restarting my free and open source SRS kanji learning app https://shodoku.app which is based on free and open source dictionary data and Anki’s FSRS algorithm.

    What I have is a basic flash card app with double sided cards (for writing (i.e. drawing) the kanji, and reading). What sets it apart is that each card contains all the relevant dictionary data, and users are encourage to bookmark a couple of words to help them remember the writing or the reading of the kanji.

    What I am working on now is the database backup/sync system. I store all the user’s progress in indexeddb store in their local browser. To sync I am writing a simple patch system, so they can pick a remote somewhere (e.g. a gist on github) and push their latest patches, when syncing progress I would check the hash of the patch and apply the relevant patches.

    After that I am planning on turning it into a progressive web app so users can download the app onto their devises.

    https://shodoku.app/

    https://github.com/runarberg/shodoku

  • by ayugarg567 on 5/26/25, 4:32 AM

    I'm building https://signwith.co/ - a pay per doc alternative to DocuSign

    We used to run a content and product studio, and every time we had to get NDAs or service agreements signed, it felt ridiculous to pay $30/month for 2-3 documents.

    So we built SignWith — no subscriptions, just simple pay-per-document pricing. ESIGN act and UETA Complaint.

    Every month you get 3 free signatures - and then you can pay per document. So best ROI.

    Works great for freelancers, early-stage founders, agency folks, or anyone who doesn’t need to send docs every day but still wants something secure and professional.

    Launched recently. Early traction's been interesting. Would love feedback if you’re in this space or use e-sign tools regularly.

  • by CliffyA on 5/26/25, 1:18 AM

    I've been working on a programing language to read and write Excel spreadsheets. Or more accurately I've been writing a custom programming language and porting my library to it, so I can transpile it out to other languages.

    Currently it is being transpiled to C++ and C#

    https://github.com/NumberDuck/NumberDuck-CPlusPlus

    https://github.com/NumberDuck/NumberDuck-CSharp

  • by crsn on 5/25/25, 10:45 PM

    I’m building software to augment human cognition.

    In particular:

    To help solve forecasting & planning problems too hard to hold in your head, I’m converting natural-language formulations of constrained optimization problems into (back)solvable mathematical programs, whose candidate solutions are “scenarios” in a multi-dimensional “scenario landscape” that can be pivoted, filtered, or otherwise interrogated by an LLM equipped with analytical tools:

    - 5 minute demo: https://youtu.be/-QdqiLp_9nY

    - Details: https://spindle.ai

    Eager to connect with anyone interested in similarly neurosymbolic “tools for thought”: carson@carsonkahn.com | +1 (303) 808-5874

  • by Ilasky on 5/26/25, 12:16 AM

    https://dailytokki.com

    It's an email-only Korean (and English) language learning service started by me and my partner! We've both been interested in language and, since I've been learning Korean and she's been improving English, I've been looking for a modality that works for me -- apps don't click for me for some reason.

    It started by me sending myself an email everyday with new Korean vocab/grammar, but we thought it would be nice if it responded with corrections and learned from my common mistakes to make better questions. So, we've built it out to work for us, and turns out other people also like it and are growing everyday!

  • by ryanmentor on 5/26/25, 6:29 AM

    Most of what I'm working on ends up being social clubs.

    Tech Pizza Mondays has been going well, as the Toronto HN meetup. If you're reading this on HN, you're welcome to join us -> URL Mondays.Pizza details on fedi.

    We just finished Toronto's Pizza Day, our fifth year in a row and most successful so far. toronto.pizzadao.xyz will eventually get updated to next year's event invite.

    I threw a fun experimental comedy party, and I plan to throw another in August. Having a volunteer cast was great, the clown burlesque was shockingly great. I hope to find some team members who want to join forces and put on the greatest talent show this town has ever seen!

    Working on founding a school in Toronto has been very difficult, feels like I'm making zero real progress over time. If anyone cares deeply about education, I'd be happy to talk. I'm extremely enthusiastic about the Sudbury Valley School model.

    And this last week I started a fitness club, where most weekdays we do strength training with giant wooden swords. Looking for people who want to join up and get strong and have fun!

  • by cmontella on 5/26/25, 4:09 PM

    I'm working on a programming language called Mech: https://github.com/mech-lang

    It's for building robots, scientific computations, user interfaces, reactive systems, and so forth. Currently working on docs for this new version that I'm about to release. I'll post a Show HN when I do. Here's the spec so far it's a very WIP, maybe 20% done: https://docs.mech-lang.org/v0.2/II.reference/specification.h...

    The cool part about the spec is it's a valid Mech program which is formatted into html by the formatter! https://gitlab.com/mech-lang/docs/-/raw/main/II.reference/sp...

  • by tootyskooty on 5/26/25, 12:54 AM

    https://periplus.app

    A website for open-ended learning with LLMs. Something like a personalized, generative Wikipedia. Has generated courses, documents, quizzes and flashcards.

    Each document links to more documents, which are all stored in a graph you grow over time. Currently using the graph for topic suggestions, though I've also been playing around with steering document generation with it as well.

  • by lihaoyi on 5/25/25, 10:04 PM

    Working on my Mill build tool, aiming to bring a modern developer experience to the JVM ecosystem:

    - https://mill-build.org

    Build tools are generally an un-sexy field, and JVM build tools perhaps doubly so. But Mill demonstrates that with some thought put into the design and architecture, we can speed up JVM development workflows by 3-6x over traditional JVM tools like Maven or Gradle, and make it subjectively much easier to navigate in IDEs and extend with custom logic.

    If you're passionate about developer experience and work on the JVM, I encourage you to give Mill a try!

  • by harisund1990 on 5/25/25, 10:20 PM

    YugabyteDB a distributed postgres database.

    Think of it as a true drop in replacement for postgres that runs on multiple nodes. It internally does replication, sharding and leader election. Just add more nodes and you get to increase both read and write scale.

    I personally am working on a few things like online major upgrades, async replication for DR, enhanced backup/restore/pitr/clone capabilities, and more recently supporting DocumentDB extension which provides a true Mongodb API.

    Being a startup I also get to talk with large customers, help with marketing content, and participate in database conferences.

  • by frainfreeze on 5/25/25, 9:27 PM

    A hybrid between forum and (headless) CMS, with customer support tools built in, so people can build websites that are kinda like posthog.com without having to patch everything together from scratch (and instead focus on their actual product AND not lose their community content in slack/discord/whatever).

    Checkout how posthog did it [1], it's an interesting approach. Having something that can support both devs and content folks (non technical) is great. It is easy to get bogged down in building the website and reinventing bunch of wheeels, instead of focusing on the product & content, esp in smaller teams.

    [1] How PostHog built a community forum, roadmap and changelog on Strapi https://strapi.io/user-stories/posthog

  • by arjunbajaj on 5/25/25, 11:22 PM

    Fostrom (https://fostrom.io)

    A developer-focused IoT Cloud Platform. The idea stems from pain points experienced while automating an indoor farm a few years ago where I had to spend way too much time building the data collection and analysis infrastructure instead of focusing on the actual automation.

    Devices connect via secure MQTT, HTTP, or WebSockets and send structured, typed data. Each device gets its own sequential mailbox for messages. You can trigger webhooks or broadcast messages to other devices based on incoming data, powered by programmable actions.

    Just deployed to production. Currently working on Device SDKs (coming very soon) and time-series analytics. Check out the platform, we're in technical preview now. Happy to answer questions and appreciate any feedback.

  • by bruno_rzn on 5/25/25, 9:29 PM

    I’m working on Karl [https://www.veloursdevices.com], a MIDI controller. It’s quite unique because it features 32 encoders over a display, which allows you to have a fully customizable interface—like a touchscreen, but with actual knobs you can touch.

    I have a software engineering background, and I’ve been working on this for nearly 3 years now! I used to play with the Electra One controller before, but having the encoders over the display is really something I’ve always wanted.

    I presented Karl last month at Superbooth (a fair in Berlin) and got really good feedback. After 6 months of beta and 2 years of touring with it myself, the first batch will be dispatched in August, and this is quite exciting!

  • by jumploops on 5/25/25, 11:21 PM

    We’re trying to make AI-first apps accessible to everyone.

    Here’s a simple app my toddler made to generate toy trains[0].

    “Real users” are using it to build personal software tools like finance dashboards, content generators, and educational apps.

    Right now the functionality is great for many simple tools, but it’s notably lacking a first-class data layer (coming soon!).

    All of the AI-generated code runs in secure MicroVMs, and the front-ends are just static assets, meaning the apps scale to zero when not in use.

    We’re currently in the process of making the builder less of a “workflow” and more purely agentic, which should improve the overall success rate.

    [0]https://toy-train-generator.magicloops.app/

  • by whiskey-one on 5/26/25, 6:36 AM

    A web app which we plan to be always free for personal use. It's called MyMirror 360 [1].

    The goal is for you to get complete and honest feedback from the team you work with. The killer feature is we make it quick and easy. And your reflectors can never initiate the instance of giving of feedback, the system invites them; this avoids the "but I am angry now" situation.

    You can add the team members you work with in any setting and specify how often you work together. Depending on that, they will get the chance to reflect on you between every four weeks and every eight weeks. A reflection takes literally seconds.

    Sign up is invite-only atm but invites are handed out pretty quickly since we want the feedback! Just sign up for the wait list on the site [1]. It will be free because we have a business version [2] that will support it; and the personal app will hopefully generate interest in the company one.

    You can send feedback to "admin" at the domain of the company one [2].

    [1] Personal: https://www.mymirror360.com/ [2] Company: https://www.mirror360.org/

  • by Seb-C on 5/26/25, 9:07 AM

    I'm working on a universal tool to generate and print custom dust jackets for books, with the goal of making prettier bookshelves.

    https://www.jacket-lab.com/

  • by Cyphase on 5/26/25, 8:08 AM

    Myself.

    Been a freelance dev for years, now going on "sabbatical" (love that word) very shortly.

    Planning to do a lot of learning, self-improvement, and projects. Tech-related and not. Preparing for the next volume (not chapter) of life. Refactoring, if you like, among other things.

    I'm excited.

    ---

    I posted about this on last month's thread, and mentioned in a descendant comment that I was going to PyCon US in May. Someone well-meaning asked if tech conferences are in tune with working on myself. I just got back from PyCon. Yes! It was an incredible experience. Not for learning technical things from talks – the talks are mostly online already – but for the social and community aspects.

  • by marginalia_nu on 5/25/25, 10:10 PM

    I'm working on a chrome extension for use in a headless browser in marginalia search to capture information about network traffic, ads, and popovers when visiting a website, to better identify nuisance websites.

    A bit of a janky setup, but I've mostly gotten it to do what I want it to do after some head scratching.

  • by Benjamin_Dobell on 5/25/25, 10:50 PM

    I'm working on tooling to turn kids from consumers into creators. I'm focusing on game development initially, but have plans for video production and hands on crafts.

    For older kids I've been making it easier to write games in Godot using TypeScript:

    https://breaka.club/blog/godots-most-powerful-scripting-lang...

    I'm building tooling using this technology which allows kids to create their own games, this is itself presented as a game kids can play through. Basically, imagine if Roblox actually delivered on its promises to kids.

    Most of what we're building will be open sourced, so that older kids / young adults will be able export their projects and share their creations stand-alone.

    Of course, telling kids they can create their own game is only relevant is kids want to do that. We're not locked into one way of thinking. We've also modified Overcooked 2, a traditionally co-op game and introduced a visual scripting platform which allows kids to code their way through levels:

    https://www.youtube.com/watch?v=ackD3G_D2Hc

    Overcooked 2 won't be the only game for which we do this. Introducing coding to existing games is a fun way to teach kids to code, without yet burdening kids with too much creative freedom. Kids already want to play these games, so this approach allows us to bring educational tooling to kids rather than vice versa.

    I used to be Head of Engineering at Ender, where we ran custom Minecraft servers for kids: https://joinender.com/ and prior to that I was Head of Engineering at Prequel / Beta Camp, where we ran courses that helped teenagers learn about entrepreneurship: https://www.beta.camp/. During peak COVID I also ran a social emotion development book subscription service with my wife, a primary school teacher.

  • by sidyapa on 5/26/25, 10:42 AM

    I vibe coded a chrome extension that highlights new links on HN frontpage since your last visit, so that you dont have to waste time looking for which links are new.

    https://chromewebstore.google.com/detail/hn-new-links-highli...

  • by zacharycohn on 5/25/25, 8:46 PM

    https://www.moviemixup.com

    A wordle-like game based on a road trip game my friends and I used to play. It serves you up a mashup of two different movie plots, and you have to guess the combined movie title. There's always some sort of shared word or wordplay between the two movie titles.

    An example from the tutorial: the day after tomorrow never dies.

  • by taroth on 5/26/25, 5:50 AM

    I get background anxiety while waiting for long-running terminal commands. Nowadays that nagging feeling extends to LLM calls too. Seems like as AI spreads, the pain will only get worse

    So I’m working on a universal progress bar HUD

    - inspired by World of Warcraft raid mods

    - fun sound effects for job start, end, error, and milestones

    - can quick jump back to relevant app/tab

    - starting with terminal commands and Claude code, cursor agent next

    https://youtu.be/6pk7KGOh60A?si=75FRq4kjhDHNSdE9

  • by vahid4m on 5/26/25, 1:06 AM

    https://desktop.with.audio/

    A one time payment (no subscription), local text to speech solution for MacOS or Windows. I've been a heavy user of Speechify but it was a bit expensive to justify. So I eventually built With Audio and after a few iterations now I'm working on the desktop app. Our laptops are very powerful and they are more capable of running some of these Text To Speech models with near to real time performance.

  • by Oras on 5/25/25, 8:27 PM

    Free Resume Builder

    When I was looking for a job last summer, I got frustrated with the current resume builders on the market and decided to build one exactly how I wanted to use it.

    - No signup, no login, and no payment.

    - Suggest a professional summary (with highlighting) to match a job description [0].

    - Preview as you go.

    - ATS friendly templates.

    - Find relevant jobs for my resume.

    [0] Recruiters skim through resumes, and highlighting the keywords they look for has always helped me to get their attention, so I decided to implement this feature using AI.

    https://resumeyay.com

  • by lancekey on 5/26/25, 2:21 AM

    I’ve been researching cloud GPU providers and collecting per hour prices at https://computeprices.com.

    My thesis is that the next few decades will be driven by the prices of compute and kWh. This is my way of getting a better understanding of the ecosystem.

  • by psviderski on 5/26/25, 1:04 AM

    After a decade of professionally working with container orchestrators like Kubernetes and ECS I quit my job to build Uncloud — an open source lightweight version of those [1]. I want the tool to bring me joy when I use it, in a similar way Docker did when I first tried it in 2013.

    Imagine Docker Compose and Tailscale had a baby. Uncloud is the baby that allows you to deploy and manage containers across a network of Docker hosts. I feel like we forgot how to build simple tools that do the job and not a thousand other unnecessary things.

    I've started migrating some of my self-hosted web apps from my k8s cluster and I really enjoy it. Using the tool early on helps me better understand where the biggest pain points are and what I need to prioritise.

    [1]: https://github.com/psviderski/uncloud

  • by jakevoytko on 5/26/25, 4:22 AM

    I am writing a newsletter, https://www.clientserver.dev. It started with the writing prompt “what if someone tried to make Money Stuff for software engineering?” My time is constrained since I have a kid, and I’m still iterating on the format a bit. But I recently crossed 250 subscribers and have made the Hacker News front page twice in the 6 months I have been running the newsletter, so I feel like I’m on the right track.

    In the past few months, I've learned that (a) writing a bulleted outline is a cheat code for producing decent work quickly, (b) every newsletter is a reminder that people could unsubscribe, so skip publishing issues that you're not proud of, (c) people really like stories, and (d) it's okay to have a mix of formats.

  • by berdon on 5/25/25, 11:03 PM

    A cross between a text MUD and an early 2k browser based RPG. Hoping to incorporate many advanced MMO and LitRPG based features plus complex economic, npc, guild, quest, and crafting mechanics. It’s more of a passion project/hobby with no expectation of adoption. It has been very fun to build.
  • by murrion on 5/25/25, 8:31 PM

    I’ve been experimenting with data formats like Parquet and Iceberg, and recently came across Lance. I wanted to try building something around it.

    So I put together a simple Digital Asset Manager (DAM) where:

    * Images are uploaded and vectorized using CLIP

    * Vectors are stored in Lance format directly on Cloudflare R2

    * Search is done via Lance, comparing natural language queries to image vectors

    * The whole thing runs on Fly.io across three small FastAPI apps (upload, search, frontend)

    No Postgres or Mongo. No AI, Just object storage and files.

    You can try it here:

    * https://metabare.com/

    Or see the code here:

    * https://github.com/gordonmurray/metabare.com

    Would love feedback or ideas on where to take it next — I’m planning to add image tracking and store that usage data in Parquet or Iceberg on R2 as well.

  • by static_void on 5/25/25, 10:27 PM

    A card game in Ruby on Rails, with an emphasis on deep reaction trees, and where the resolution order of action trees depends on whether actions resolve before or after their triggers.

    Its real purpose is twofold: I enjoy data modeling, and doing just enough Rails work to regain fluency after a gap.

    https://github.com/alexnyeoverride/causality-rails/

  • by jamesdhutton on 5/26/25, 2:01 AM

    An app for parents to motivate their kids by awarding them points for good deeds. There are existing apps out there, but I tried them and didn't like them, so I'm building my own. This is a side project for me and I only get to spend a few hours a week on it. Currently in beta testing and I hope to launch around July.

    https://whirl.digital

  • by satisfice on 5/25/25, 11:01 PM

    I am working on a critical thinking class based around the use of LLMs.

    This involves exploring the ethics of using magic to accomplish tasks. The problem then boils down to a matter of epistemology— a testing problem. But testing is something you only do in the absence of trust. So critical thinking begins with the rejection of trust.

    It’s been interesting to read about “Anomalistic Psychology” which is the study of magical thinking. Malinowsky commented that not a single canoe was built by Melanesian islanders without the use of magic, yet none of them would say that they could be built without craftsmanship.

    Magic is the belief in the infallibility of hope, to paraphrase Malinowski. Which may explain why too many smart people are uncritical about LLMs.

  • by unsoldbanana on 5/26/25, 1:35 AM

    I'm working on Finzz; I like investing but was struggling with doom-scrolling across various platforms to find things that were relevant to me. So I created Finzz which on-demand creates a multi host audio podcasts focused specifically on my stock portfolio and investment goals. I tell it the reasons behind why I hold these stocks and it tries to keep me honest to these goals and suggest rough actions from time to time.

    https://finzz.xyz

    Here's a sample if you are wondering what its like: https://finzz.xyz/shared/rnl-oO955IPZN6Ux78E-l8DC

  • by mindcrime on 5/25/25, 8:19 PM

    As far as what I'm focusing on this weekend:

    1. Right now, working on standing up an MCP server in Java. Not using the Spring Boot support at the moment, but rather setting up embedded Tomcat and doing it the more "low level" way just for didactic purposes. I'm sure I'll use Spring Boot once I get deeper into all of this.

    2. Plowing through the "AI Agents in Action" book. I'm just wrapping up the section on AutoGen and about to move into crew.ai stuff.

    3. Reading a book on Software Product Line Engineering.

    4. I have an older project that's Grails based that I let linger without any attention for a really long time. I'm working on updating it to run on the latest Grails and Java versions and also writing some automated smoke tests.

  • by anonzzzies on 5/26/25, 4:15 AM

    Trying to replace everything I use daily, outside money/banking, with my own fully customizable software. I had enough depending on others.
  • by yoav on 5/25/25, 9:42 PM

    I’m building Electrobun (https://github.com/blackboardsh/electrobun)

    It’s an alternative to Electron/Tauri that uses Bun.

    It has a bsdiff based update mechanism that lets you ship updates as small as 4KB, a custom zstd self extractor that makes your app bundle as small as 12MB, and more.

    I’m currently working on adding Windows and Linux support.

  • by umvi on 5/25/25, 9:29 PM

    I'm working on a programming game called "Pragma Twice". As in, playing the game involves programming. I just put up a steam page for it (https://store.steampowered.com/app/3528840/Pragma_Twice/) and have a demo submitted to Valve for review (which should hopefully be approved any day now, since I'm trying to participate in June's NextFest)

    This game was originally inspired by the game "Untrusted" (https://github.com/AlexNisnevich/untrusted)

  • by krlx on 5/26/25, 3:16 PM

    A web app for my wife and my friends so they can order hot drinks when they are coming to my home.

    Still quite early in the development but if you want to make my phone ring you can place an order on this page : https://micro-cafe.nuxt.dev/alix

    You won't see your placed order nor get served however.

  • by dmitrysergeyev on 5/26/25, 4:41 PM

    Building (https://estan.ai), an AI that reverse-engineers real estate listings by pulling not just from public records, but also social media, neighborhood forums, historical sales, and user reviews. It flags red flags—like crime trends, sketchy development patterns, neighborhood trends, and so on—then presents them in plain, opinionated language.

    Goal: replace the vague boilerplate of listings with something closer to a paranoid friend who's done way too much research. Curious if this kind of subjective, context-heavy analysis adds real value—or just noise.

  • by StackRiff on 5/25/25, 10:48 PM

    https://dateit.com

    A social event planning app to capture the fun my friends and I had with facebook events, but without the facebook. We have native apps for iOS, Android and the web. dateit has a generous free features compared to competing apps (SMS invites, photo upload, customization).

    My cofounder and I have fully bootstrapped this and now it mostly self sustains which is an exciting achievement!

    It's been a fun project to hack on for the last couple years and spawned several interesting side quests. For example, the backend is in Swift (as I started as an iOS dev) so that has been an exciting space to work in.

  • by srcreigh on 5/25/25, 11:50 PM

    My workplace is a bird conservation non-profit with java code from 2006 and the website is many jsp files.

    I've added a react SSR system. It has node subprocess code for rendering HTML from java via stdin/stdout. There's a Node/Vite proxy server that adds the fancy HMR you expect from SPA apps.

    It supports multiple roots on a page, every SSR component has data-props and data-componentname, and the entry script just queries those attributes and hydrates everything.

    The node renderer script is packaged as an EXE which is deployed in WEB-INF on the server.

    It's fun to add the amazing React tooling to an old codebase. It also shows how you really, really, really do not need NextJS.

  • by straumat on 5/26/25, 6:26 AM

    Coinbase has just unveiled x402, a protocol that resurrects the HTTP 402 status code and enables instant stable-coin payments—no bank account, card, or subscription required. APIs, applications, and AI agents can now autonomously settle or receive micro-payments to buy data, services, or computing power.

    To tap into this revolution, I created Mogami: a Java / Spring Boot library that lets you make any URL pay-to-access with a single annotation. → Code & docs: https://github.com/mogami-tech/x402-spring-boot-starter

  • by wagslane on 5/26/25, 2:09 PM

    I've published a lot of interactive programming courses on Boot.dev over the last few years, but the issue that's been plaguing the platform is how quickly it moves through material.

    Like we give people challenges for each new concept, but we don't give them 4 or 5 challenges for each new concept. It's hard to get right because

    1. It's a lot of work to make challenges/review material 2. Every student wants a different amount of practice/review

    So anyways I think we've got a really good solution in the works, been cooking on it this week and we're hoping to be ready to go live in August

  • by admiralrohan on 5/26/25, 11:29 AM

    Working on a mathematical model to quantify what is theoretically possible for humans to bridge all fragmented theories across psychology, mental health, productivity, economics, and more (similar to what Shannon did for Information theory).

    It stems from my struggle to keep up with the feeling of overwhelm with so many things to learn. Currently working on organizing all of my thoughts into a coherent theory.

    You can check my blog to learn more about my journey and the theory = https://www.moderncynicism.com/about

  • by flippyhead on 5/26/25, 1:03 PM

    A deep research system to discover if your dumb saas idea is already out there.

    I got sick of starting a project only to later discover significant competitors or features of the marketplace I missed, despite looking. I can now do in minutes what used to take me days.

    https://already.dev

  • by qu0b on 5/25/25, 9:19 PM

    We’re building conversational product discovery tools for e-commerce stores, moving beyond the limitations of traditional search bars. Our system lets shoppers explore and find products naturally—using their own words. We’re about to launch with our second customer, and early results show a faster, more intuitive, and more convenient shopping experience. For our retail customer we've had users just copy and paste their complete shopping list and be done within one conversation turn. https://www.isartech.io/
  • by mukeshsoni on 5/26/25, 7:34 AM

    I have been making a photo management app for myself (https://viroop.com/) since i hate paying the monthly Adobe tax for Lightroom. I like Lightroom but for my needs, paying $10 per month is too much.

    I have built the basic photo management functionality. I have also added conversational search using the CLIP model, which is working really well.

    I hope to add a photo editor to the app because that's the part i love about Lightroom. It's a photo management app with a built in photo editor (which is really good).

  • by matty22 on 5/26/25, 4:47 PM

    Working on a site to help people find stained glass windows to visit in their towns/cities. No exciting tech (vanilla HTML/CSS/JS) and lots of data entry, but making some decent progress!

    https://www.stainedglassatlas.com

  • by gue-ni on 5/26/25, 6:53 AM

    A 3D terrain renderer called 'FreeFlight', using real world elevation data and aerial imagery. I am hoping to turn it into a flight simulator eventually.

    https://www.jakobmaier.at/posts/free-flight/

  • by stuartdev on 5/26/25, 5:58 AM

    My first iOS app, a book reading tracker. I used to set a timer every time I was reading a book, but I decided to create an app for myself to track the time, log sessions, organize my books into bookshelves, see progress, etc.

    - https://bookreadinghabit.com/ - https://apps.apple.com/app/book-reading-habit/id6742913266

  • by ecce_homo on 5/25/25, 8:40 PM

    Because I love building APIs and backend services, I built a simple IP geolocation service with the best developer experience. It has free (rate-limited) access and affordable paid tiers. Check it out: https://ip-sonar.com
  • by monroewalker on 5/25/25, 10:52 PM

    Now that Claude 4 is out, I’m making some updates to the project I’ve built primarily just with Claude Code: https://github.com/mwalkerr/BookmarkCanvas

    It’s just a basic IntelliJ plugin which provides an infinite canvas to add code bookmarks to. I work on a large code base and often have to take on tasks involving lots of unfamiliar areas of code and components which influence each other only through long chains of indirection. Having a visual space to lay things out, draw connections, and quickly jump back into the code has been really helpful

    The canvas and UI is built using Java AWT since that’s what IntelliJ plugins are built on, but it occurred to me that I could just throw in a web view and use any of the existing JS libraries for working on an infinite canvas. React Flow has seemed like the best option with tldraw being what I’d fallback to.

    But then.. if the canvas is built with web technology then there’s no reason to keep it just within an IntelliJ plugin vs just a standalone web app with the ability to contain generic content that might open files in IntelliJ or any other editor. I’m pretty sure the “knowledge database on a canvas” thing has been done a number of times already so I want to also see if there are existing open source projects that it’d be easy enough to just add a special node type to

  • by colordrops on 5/26/25, 5:51 AM

    HomeFree

    https://homefree.host

    A turnkey self-hosted home router + app server that you can (eventually) just plug into your modem and go through a simple setup and have self hosting. It's in heavy development, so it requires some experience with NixOS to get running, but the goal is to have it usable by non-technical people.

    Current features

        - Firewall
        - Headscale VPN, apps private by default
        - Automated DDNS
        - Dozens of apps with automated subdomain allocation and TLS cert management
        - Ad Blocking
        - Customizable public landing page
        - Single module configuration for all features
        - Automatic backup for all apps
    
    In Work/TODO:

        - Better landing page and contribution process
        - Admin Dashboard, Config page
        - SSO across apps
        - Ability sync to a cloud instance in case you no longer want to host at home
        - Ability to mesh with friends/family/associates for social networking, distributed backup, distributed CDN, etc
        - Getting others to install it and build a community
    
    Aspirational:

        - A standard protocol or tool for updating DNS entries at registrars
        - A standard protocol or tool for updating modems with suitable settings for self-hosting
        - a free DDNS service to provide to users of HomeFree
  • by seveibar on 5/25/25, 11:25 PM

    This weekend working on an open-source algorithm to automatically lay out schematics. Easy problem to do poorly and very difficult to do well! My current approach is “match to existing corpus of well-laid-out schematics, then adapt until the netlist fits” hopefully it works out!
  • by max_on_hn on 5/26/25, 7:18 AM

    I've been building a coding agent SaaS (https://cheepcode.com) for the past several months. I waited too long to release it and ended up launching after Jules/Codex/CCSDK instead of before, but I'm glad I got it out there.

    It works by connecting directly to Linear and dispatching assigned tasks to agents that submit PRs in GitHub when finished. My agents work in a fully-integrated Linux development environment, including internet access. This means that they can browse the web, install dependencies, and creatively work around environment issues to make sure they run and test the code they ship.

    It's really gratifying to see people asking all over the internet, "Where can I just create tickets and get pull requests?" because that's exactly the workflow I built CheepCode to support. As an engineer for almost 15 years, I knew what I personally wanted, and it really makes me happy to see that what I built will work for so many others too.

    As a bootstrapped solo founder, it's challenging to juggle product/growth/development/strategy all at once, but also incredibly rewarding. I wouldn't necessarily say no to funding ;) but in the meantime, it's quite a thrill!

  • by Daenks on 5/26/25, 1:42 PM

    Hobby: I'm trying to write a simulator for Brandon Sanderson's cosmere magic system using a vector database to represent the in-universe spiritual realm and all it's connections, and small AI models to represent intents.
  • by wolfoftheweb on 5/26/25, 3:05 AM

    I’m building https://TaleTwister.com – an AI tool that generates and narrates bedtime stories based on a kid’s interests, a specific moral lesson, age, and optional specifications. The product was born out of necessity (a stint of bad behavior that comes with age).

    It uses GPT-4 for story generation, ElevenLabs for narration, and a simple Next.js + Supabase stack for the app layer. I’m experimenting with story memory (so kids can revisit recurring characters) using vector embeddings, and building a “choose-your-own-adventure” mode with dynamic audio rendering.

    Biggest challenge so far: aligning narration, ambient sounds, and story pacing without sounding janky or robotic. Solved it by tokenizing and chunking the story for synchronized audio stitching via ffmpeg.

    Another challenge was the inconsistent image illustrations via Dall-E 3. I’ve adopted a dynamic prompting method that includes as many details about the scene, character details, and other visual elements which should remain consistent on each of the storybook pages.

    If your kid ever demands “one more story” after a long day, I built this for you. It’s had a meaningful impact on my son’s behavior.

  • by petabyt on 5/25/25, 10:59 PM

    I've been working on a Virtual DOM in C. Basically like dear imgui but it uses a retained-mode toolkit like GTK instead of rendering manually.

    https://github.com/petabyt/rim

  • by fmstephe on 5/26/25, 1:34 AM

    I've been working on an offheap allocator for Go.

    In contrast to the popular arena based allocators (which target quickly allocating/freeing short lived per-request allocations), I am targeting an allocator for build very large in-memory dbs or caches with almost no garbage collection cost.

    There's a little no-gc string interner package in there as well.

    https://github.com/fmstephe/memorymanager

    It's somewhat on pause right now as I have just started a new job. (but it has been a very fun project, nerdy joy).

    Related to the memorymanager, as in intending to support it are

    https://github.com/fmstephe/fuzzhelper A library for setting up fuzz tests for complex data structures.

    https://github.com/fmstephe/gossert A library for adding runtime assertions to Go code. It's developed so that when the assertions are switched off the compiler should be able to completely eliminate the assertions. But this requires build tags to switch the assertions on.

  • by parsabg on 5/25/25, 11:20 PM

    I've been working on a browser use agent embedded within a Chrome extension: https://github.com/parsaghaffari/browserbee

    You can use it to check and summarize news and social media, fill out forms, send messages, book holidays, do your online shopping, conduct research, and pretty much anything else that can be done within a browser.

  • by jrslv on 5/26/25, 2:53 PM

    I’m working on https://rejobs.org - a job board dedicated to careers in the renewable energy industry.

    It aggregates job ads from various sources and lets employers post directly. The goal is to help more people find meaningful work in wind, solar, BESS, etc.

    Built with PHP, PostGIS, and a swarm of GPT-assisted cron jobs. I’d love your feedback.

  • by NiloCK on 5/26/25, 11:59 AM

    I'm working on a modular OSS stack for creation of interactive tutoring systems. Think anki + wikipedia + mathacademy + duolingo, but with very generic interfaces that allow for all sorts of interactive content (eg, one working prototype is an ear training / site reading course with midi keyboard hookup).

    I want to sand away the roughest edges of the SRS user experience, and to enable individuals and organizations to easily spin up courseware that's aligned with best pedagogical practices and fits naturally into the hands of educators.

    And, in the current wave, also think bolt.new or lovable.dev, with 'agentic' workflows for both content (scouring source material for ) and for user-authored bespoke interactive, via LLM authored artifacts.

    Optimistic for some ShowHNs or more general shilling this week.

    - https://github.com/patched-network/vue-skuilder - https://patched.network

  • by synergy20 on 5/25/25, 11:29 PM

    A wifi router that blocks all websites except for those needed for kids to study when you need it, and there is no way to escape, not even with vpn or tor or whatever, also with dashboard to show where they spent time on for how long.

    My middle school aged kids was able to escape with free proxy, vpn, tor etc in the past which forced me to figure out a way to lock it down totally when it's absolutely needed.

  • by dhamidi on 5/26/25, 8:58 AM

    More tools / toys / sandboxes to play with.

    Growing a coding agent as a "game": https://github.com/dhamidi/smolcode. Started with https://ampcode.com/how-to-build-an-agent and then asked the agent to modify itself. It's so much fun and hard to stop!

    Since coding is cheap now, I'm building a web framework for myself, using reasonable defaults: built around the transaction log, single binary deploys, sqlite3 for everything, runtime introspection tools to make ops easier.

    I want the framework to "compile itself out of the project", so that projects don't have devtime dependencies and can be easily edited by Cursor et al. It should still stick around in the form of a high-level CLI that an AI agent can leverage to fulfill common tasks (e.g. add a new UI component, query, command, etc).

  • by brylie on 5/26/25, 11:59 AM

    Finntegrate: AI-powered multilingual assistant for immigrants to Finland

    https://finntegrate.org

    My co-founders and I are building an AI assistant that helps immigrants navigate Finnish bureaucracy. As immigrants, we've experienced firsthand how fragmented and inaccessible essential information can be, scattered across Migri, Kela, the tax office, and municipal websites, often only in Finnish and Swedish.

    We're using RAG (Retrieval Augmented Generation) to create a multilingual chat interface that connects people to official resources rather than replacing them. The system reduces "failure demand" - support requests that arise because people can't achieve their goals through existing resources.

    The technical approach is a multi-agent system in which specialized AI agents handle different domains (immigration law, employment, housing, healthcare, etc.). We've named the agents after Finnish mythological figures (such as Tapio, Ilmarinen, and Sampo) to create a cultural connection while providing practical assistance.

    Interestingly, this addresses a systematic problem - government agencies spend significant resources on repetitive support that could be automated. At the same time, immigrants get frustrated trying to piece together information from multiple sources.

    We're exploring B2B opportunities (companies relocating employees, municipalities, healthcare systems recruiting internationally) and EU funding for integration technology.

    Happy to share more details or get feedback from anyone who's worked on similar multilingual AI systems or government-facing tools.

    GitHub: https://github.com/finntegrate/tapio

  • by vivzkestrel on 5/26/25, 5:54 AM

    - I am working on a production grade node express, hono, fastify, python, fastapi, flask, django generator that configures all the tools necessary for a production environment and gives you a readymade starter with granular commits that you can directly start building features on.

    - For node, that means it installs eslint + prettier / biome,

    - setups all the plugins,

    - sets up typescript with watch mode using tsx and alias support,

    - installs vitest with all configuration,

    - installs dotenvx and configures it to use separate development, staging, test and production configuration,

    - installs commitlint, commitizen to ensure all your commit messages adhere to specific conventions,

    - installs lefthook / husky to run tasks before commit, on push etc.

    - Adds github actions for linting, running tests.

    - Creates a docker development, testing, staging and production setup with different dockerfiles for each.

    - Development version installs self signed localhost SSL certificates for use by nginx/traefik/caddy.

    - Test environment runs all tests inside the container and shuts it down,

    - Staging environment mimicks real production as closely as possible with minimal resource consumption.

    - Production environment uses actual SSL certificates issued by the likes of zeroSSL or letsencrypt with a highly optimized dockerfile for minimal footage.

    - Direct deployment to AWS / Azure / GCP

    - Python version does a tonne of stuff too. Will share if anyone is curious

    - What is special about this? As dependencies change, the boilerplate also updates itself, runs the tests and passing configuration is cached

  • by paulnovacovici on 5/26/25, 12:06 AM

    https://recallify.app/

    A way to store bookmarks all in one place similar to Pocket, but built around semantic feature as the primary feature. Been beta testing an iOS app, but need to pivot on the name since there’s another Recallify on the App Store, and haven’t gotten around to it due to not much user growth.

  • by ctbellmar on 5/26/25, 12:05 PM

    WhatSignal, WhatsApp <-> Signal relay, written in Go

    https://github.com/bikemazzell/whatsignal

    I'm working on a WhatsApp to Signal relay. I.e.: whenever someone sends a WA message to you, it appears in your Signal. You can reply and it will go back to the original sender.

    Why? I'm privacy conscious and don't fancy using a Meta product. But some of my friends/associates/family still insist on WhatsApp only. Running this WhatBridge service on my micro server behind a VPN allows me to communicate without having WhatsApp on my mobile.

    Behind the scenes, it connects WAHA (https://github.com/devlikeapro/waha ) and Signal CLI (https://github.com/AsamK/signal-cli). Still early stages, but getting closer to a workable state.

  • by alfonmga on 5/26/25, 6:32 PM

    I just finished shipping a weekend project that I really needed:

    yt2brave[0], a MacOS app that automatically opens YouTube links in Brave Browser for a better browsing experience on YouTube (no ads). It's compatible for Safari, Google Chrome and Edge. It is magic.

    [0] https://www.yt2brave.com

  • by Dathuil on 5/26/25, 9:06 AM

    Continuing my return to GameDev. I'm making my own copies of subsets of games or recreating games that already exist. Currently making FlappyBoo (FlappyBird with the ghost from Super Mario). Nearly at parity with the original game and will add a few "upgrades".

    End goal is to have many reference examples when I start to make the game I want to make.

  • by tallytarik on 5/25/25, 9:40 PM

    Working on expanding https://iplocate.io - an IP geolocation and threat data service I've worked on since 2017.

    I've found it really satisfying to solve the data challenges that come along the way, from "where on earth could this data come from" to collecting, storing, parsing, validating and serving constantly. It's also - by nature - something that's never going to be "done". There's always something to improve. I love it!

    We now offer more types of data (ASN/whois, proxy/threat detection, so on) than most other providers, more accurate and more frequently updated, at a tenth of the cost, which is something I'm really happy about.

    For anyone interested, you can make 1,000 requests day free, or reach out if you have an open source/public interest project for an unlimited key or access to the data.

    I'd also love to hear any suggestions for additional data types to add.

  • by trikko on 5/25/25, 10:08 PM

    Yesterday I released version 0.7.17 of Serverino, my HTTP server written in D

    Serverino is a small, fast, and dependency-free HTTP server implemented in D. A minimal app with serverino can handle on my laptop ~150k reqs/s and it uses just a few mb of ram.

    https://github.com/trikko/serverino

  • by shayanbahal on 5/25/25, 8:29 PM

    Vibe coding a few apps I always felt humanity deserves (a bit exaggerated but kind of not :) )

    - https://padsnap.app/ : PadSnap is a simple web app that adds customizable padding to your images so they fit Instagram’s/custom dimensions — no cropping, no quality loss. All on browser, no server uploads. Also no ads or login.

    - https://shiryakhat.net/ : redid my podcasts website last week: Shir Ya Khat podcast, which translates to "Head or Tails" in Farsi, began its non-profit journey in 2016 with a mission to make blockchain and cryptocurrency technical knowledge accessible to Farsi speakers worldwide.

    - life timetime visualizer, still WIP, feedback welcome: https://shayanb.github.io/timeline/

  • by jaronilan on 5/25/25, 9:33 PM

    Finished my 4th short story. This one is about Life Expectancy. I wrote it after reading something on HN.

    https://github.com/jaronilan/stories/blob/main/Base%20Rate.p...

    Will now move at the usual snail pace to write the next one.

  • by henko on 5/26/25, 11:31 AM

    I am building a device that helps me - and hopefully others - learn how to play a brass instrument. When picking up the tenor horn I started by making flashcards. On one side there was the note, and on the other side the fingering was shown. But this was a cumbersome way to learn, and I wanted faster iteration to get this into muscle memory. So - to procrastinate - I made a device with speakers, microphone and a small lcd screen. It is currently showing the notes and fingering automatically. But I am implementing a fast fourier transform to pick up what note I am playing to show whether it's the correct one or not. FFT for a brass instrument is not straight forward as there are many frequencies being played, but I think by tuning it - it would be a very fast and gamified way to learn an instrument compared to playing scores.
  • by theThree on 5/25/25, 8:18 PM

    The fastest PostgreSQL Node driver written in TypeScript: https://github.com/stanNthe5/pgline
  • by user432678 on 5/26/25, 1:03 PM

    I caught myself on being so overwhelmed on possibilities current state of tools and technologies can one easily utilise, so ended up working on exactly nothing at all.
  • by klaaz0r on 5/26/25, 5:17 AM

    AI SEO/GEO (or whatever it will be called eventually) monitoring for companies.

    We monitor how companies/brands rank in LLMs/AI Search, we don't use the API but the user interfaces (since these are totally different). We run thousands of prompts to analyse responses and combine that with website traffic to get an understanding of what is being said and how well you rank.

    I didn't anticipate Google moving to AI mode so fast, to be totally honest, which makes it really interesting because we likely see rank tracking and keyword tracking disappear in the near future.

    website: https://promptwatch.com

    As a fun side project, I run https://homestra.com a kind of Zillow for Europe but for second/vacation homes

  • by oulipo on 5/25/25, 8:13 PM

    I'm working on building a repairable and fireproof e-bike battery! Check it out at https://gouach.com
  • by d4mi3n on 5/25/25, 11:16 PM

    I’m working on a Content Security Policy parser. There are a handful of them around the web, but I couldn’t find one that implemented the entirety of the CSP spec and I wanted something I could use to verify structure and validity of CSP directives.

    https://github.com/damien/content-security-policy/tree/main/...

    Once I’m happy with my take on a reference implementation I’m hoping to create some tooling with it to do some interesting analysis of CSP abstract syntax trees to identify things like policy anti patterns, reporting on capabilities a policy grants to a domain/resource, and a better mechanism for allowing tools like OPA, SemGrep, etc. to define and enforce rules on a policy.

  • by linsomniac on 5/26/25, 12:45 AM

    I developed "LessEncrypt" for my dev environment, an ultra lightweight, hassle free alternative to LetsEncrypt for use with self-signed CAs like in a dev or homelab environment. At work we have self signed keys for our dev/stg environment, and manage it with Ansible and some scripts, but spend a surprising amount of time dealing with it. This is an experiment to get us out of that business.

    https://github.com/linsomniac/lessencrypt

    Short description:

    - Client generates RSA keypair and connects to server from <1024 TCP port, sends pubkey. - Server uses reverse DNS to come up with cert name (rules can specify alternate CN and SANs, override TTL, etc). - Server generates a signed cert and connects back to client on <1024 TCP port and sends cert.

  • by ginkgotree on 5/25/25, 9:47 PM

    Counter-drone defense tech https://orcrist.us
  • by csjh on 5/26/25, 4:31 PM

    Been working on a single-pass WebAssembly JIT compiler (atm only guaranteed to work on M1 air), been super interesting learning and thinking through strategies to balance fast compilation & fast generated code. It's the fastest single-pass JIT output-wise that I'm aware of, but the compilation speed could use some work.

    Also: the README is pretty outdated, the real interesting stuff happens in https://github.com/csjh/mitey-jit/blob/main/backend/arm64/ba...

    https://github.com/csjh/mitey-jit

  • by euvin on 5/25/25, 8:23 PM

    Inspired by MathAcademy, I'm developing:

    1) a note-taking workflow in Obsidian (you take bite-sized notes about a topic, then connect "prerequisite" notes in Obsidian's canvas editor)

    2) a tool that uploads each note and graph data to a database

    3) a webapp that presents those notes algorithmically using spaced repetition. This enables you to allow others to "traverse" your note graph in a guided and self-paced manner.

    You can add "challenge presets" to each note so that your mastery of each piece of knowledge can be tested with simple flashcards, multiple choice, free response, or some visual/actionable task to force active recall. An algorithm uses your success rate and spaced repetition data to introduce & drill more advanced notes into your long term memory.

    Here's some more reading I was inspired by:

    https://www.mathacademy.com/pedagogy

    https://www.justinmath.com/individualized-spaced-repetition-...

    Even if there are a lot of imperfections and flaws about this project (like the sheer difficulty of curating a good knowledge graph to begin with), I'm hoping to make my note-taking in Obsidian more structured and thorough, replace my Anki routine, and make any of my notes into an automated + algorithmic course. If someone has another similar project (combining note-taking with hierarchal, topological knowledge graphs with spaced repetition and testing all in one platform) I would love to hear more about your approaches. Quick shoutout to one person I've seen who is doing something similar: https://x.com/JeffreyBiles/status/1926639544666816774

  • by wateringcan on 5/25/25, 11:06 PM

    https://veeto.ai

    A tool that scans California legislation and flags bills that might affect your startup. You drop in a link to your website or a short description, and it returns plain-English summaries and impact analysis of relevant bills.

  • by thephyber on 5/25/25, 10:58 PM

    A few months into creating iOS apps after working on large distributed web apps for decades. Just released the first called _My Conversation Curator_ (voice to text dictation + AI summary) with Halo West[1]. The next app may be an interactive assistant to help craft OKRs and KPIs.

    Separately, working on building an app to assist with cipher analysis of things like Kryptos and Bitcoin/crypto puzzles. Loosely modeled after CyberChef, but a native app that is capable of far more detailed frequency analysis and brute forcing with the GPU.

    Also, experimenting with LLM workflows for both work and the rest of life. Prompt engineering seems like an incredibly valuable skillset for the next decade.

    [1] https://halo-west.com/

  • by clone1018 on 5/25/25, 9:05 PM

    Timely posting! I've been inspired by some recent... large gaps in data at work (silent analytics processing failures) to build a service called QueryCanary. It's a surprisingly powerful but simple tool that lets you define scheduled SQL checks to run against your database, and then checks those results for anomalies, variances, and other issues.

    Really hoping to get some early feedback on this tool, I've been using it for two production sites for about a week now and I've already discovered (at work) that we've had the 2nd largest user signup day, and that we deployed a change that inaccurately tracked a specific metric. Check it out at https://querycanary.com

  • by ryansworks on 5/25/25, 9:37 PM

    Testing the limits of vibe coding. Created a programming language 100% via prompting a o4-mini-high, but did carefully review the code. https://github.com/ryanmcdermott/spress
  • by baduiux on 6/1/25, 9:54 PM

    I stared on building my first macOS (SwiftUI) window-based sticky notes app. It’s a combination of the default Sticky Notes app and the Notes app, making it possible to stick notes to a specific window or file. Attaching a note to a window shows the note when this specific application window is started/active, e.g. an IDE window with your repository selected. I’m also planning on extending this by adding browser tab notes as well as email (document) notes.

    I always felt like collecting all my todos / notes in a single notes app is not enough. Sometimes you want to remember something just for the next time you open this app/window. Attaching the note directly onto the window makes sure you won’t forget on it.

  • by zzsshh on 5/26/25, 11:09 AM

    We're building a service to generate consistent AI personas, and create any media you need with them, photos, videos, tryons, product photos, etc.

    - Works by selecting traits, which then trains a model(flux) OR uploading your own photos.

    - Hopefully useful for shopify/ecomm store owners, digital agencies, or just about anyone to drastically speed up the time and reduce the cost to test creatives, create media content, or just do what you want with a model of yourself.

    - Web with Nextjs, DB with Supabase, marketing with nothing.

    - Happy to share more details into how we built this, and hear feedback and thoughts.

    https://www.theinfluencer.ai/

  • by mindwork on 5/28/25, 12:34 AM

    I've been working more on my homelab.

    In short: installed immich(instead of Synology Photos), Beszel, Paperless-ngx(configuration pending), moved a bunch of tools out of my HTPC VM in to separate VM, did a proper backup of my proxmox cluster and set up cloud-init template with new ubuntu.

    Due: gitops style deployment and terraformation of infrastructure(provision proxmox VMs via terraform) and auto redeployment of docker containers across 5 machines. Probably would need github runner in my network. Also Authelia is still missing in my lab, I need to get to that soon

  • by bryanhogan on 5/25/25, 11:24 PM

    I'm working on a customizable app for self-tracking, a combination of habit trackers, health logging and journaling. You should be able to track what you want in a way relevant for you. Think of a combination of free form CSV programs x habit tracker or health app.

    App will be local-first and without locking important features behind a subscription.

    Very recently I finished my bachelor thesis which was about this app (focus usability and market fit).

    Also made this site a few days ago, get notified when it launches: https://dailyselftrack.com

    More about me here: https://bryanhogan.com

  • by yu3zhou4 on 5/26/25, 7:53 AM

    Low-level deep learning library from scratch in C, without external dependencies, while not knowing C well yet https://github.com/jmaczan/curiosity
  • by harundu on 5/26/25, 4:02 PM

    A toolkit for SaaS startups, especially solo founders and small teams, that combines web & product analytics, session replays, error reporting, chat support and knowledge base in one place.

    Instead of integrating, maintaining and paying for multiple tools, everything is available in one simple to use dashboard.

    For those familiar with PostHog, you can think of it a simple version of that.

    I've been developing it and testing with few startups and plan to start promoting it more soon once the MVP is bit more polished. Also more tools are on the roadmap.

    https://overcentric.com/

  • by sampullman on 5/26/25, 3:34 AM

    Image optimizer site using WASM builds of Jpegli and Oxipng: https://image.samatech.tw

    I made it because the desktop software I use (ImageOptim) doesn't support Jpegli, which I find to be much better than mozjpeg for most types of jpegs used on the web.

    There's still a lot of missing pieces, like adding color quantization and other PNG options, improving the UI, parallel webworker support, etc. The code is open source and can be used as a library: https://github.com/sampullman/image-opt

  • by yonatan8070 on 5/26/25, 6:10 AM

    Trying to build a small tool that will allow me to edit files in my local text editor from within SSH sessions, with as few dependencies on the remote as possible, so I don't have to depend on whatever `vi` happens to be where I'm working.

    I started the project around a year ago, then got a little stuck and forgot about it for a while, until now.

    For anyone curious about the technical details, it's a Rust program that wraps `ssh`, copies a small statically compiled binary to the remote, and uses SSHFS/SFTP (haven't decided yet, maybe configurable?) to allow your local editor to access the remote files as easily as local ones

  • by omgmajk on 5/26/25, 11:25 AM

    I'm working on a isometric rpg/turn based strategy game with a sci-fi theme, currently in the writing and design phase with very little code done. It's gonna be a multi-year project. Nothing to show, sadly :(
  • by AlbinoDrought on 5/25/25, 8:20 PM

    Unifi Video was replaced by Unifi Protect some time in 2020. I wasn't sure how to self-host Protect, so I never migrated to it. I've recently reached a situation where some phones can no longer install the Unifi Video app. These phones are now relegated to using the rough-on-mobile UI. The Unifi Video web UI has also never worked well in Firefox for me.

    In the past few months, I've finally started working on a basic replacement NVR that works for me: https://github.com/AlbinoDrought/creamy-nvr

    Like many video projects, it's a glorified ffmpeg wrapper :)

  • by mattbettinson on 5/25/25, 8:46 PM

    I’m working on https://voicecast.app/ but struggling to get users. It’s a way for podcasts to get voice messages for their shows. Any advice appreciated!
  • by curo on 5/26/25, 2:26 AM

    Building a Duolingo-like app to "learn from the greats, daily." (https://www.scrivium.com)

    Until recently, it was cost-prohibitive to gamify topics with indefinite answers and progressions. As a result, "left-brained" topics have been gamified for years, but "right-brained" topics have resisted gamification. LLMs and generative AI unlock game economics for unstructured text.

    Casual gaming is only category outpacing passive, social media. The most direct way to elevate humanity's media appetite is to turn human greatness into casual games.

  • by bennydog224 on 5/26/25, 9:46 PM

    We’re looking to improve signal and reduce noise for energy traders. Currently, power is a niche market that relies heavily on day-ahead forecasts to set prices for energy contracts. When they’re actually exercised, it can be problematic for the buyer and/or seller if energy demand is significantly lower or higher than anticipated.

    We currently are focused on hydroelectric power in the PNW region - converting river flow to tradable metrics.

    Check us out -> https://askcrystal.info/dashboard

  • by maz1b on 5/26/25, 12:07 PM

    Working on MedAngle - the world's first Super App for premed/medical/dental school. tens of billions of seconds spent in our family of Super Apps, 100m+ questions solved, ~100k users (invite only, doctors+med studnts). We personalize to the curriculum of any school we launch at.

    https://medangle.com

    We're looking on scaling further internationally. I myself am a US-Pakistani, the first medical doctor + full stack engineer and technologist in Pakistan's history (~250m people). Would love to chat with anyone interested!

  • by prashantsengar on 5/29/25, 1:11 PM

    An open-source pluggable version of Omnivore (read-it-later app).

    The idea came since Omnivore decided to shut down. It is open source and self-hostable but the whole system has so many bells and whistles that nobody would want to self-host it. Even more, even if I am able to export all my data, I will be unable to use their beautiful client to view my data or build anything of my own because I am not good at that.

    The idea is to have a read-it-later app that has modular components each of which can be self-hosted independently which talk in protocols. So a different data crawler module that can take many forms - browser extension, Telegram bot, or something else, that takes an URL and posts the page content to a server.

    The server will have modular parsers that are extensible to support different websites and pages, contributed by community (similar to Telegram's parser or Calibre's). It then converts it into a common format to be stored.

    The storage should also be pluggable so that I can easily store my data wherever I want - whether locally as MD files, on S3, or on an SQL Database. This also should be extensible to allow different storage types like so many other tools do.

    Then a web server that serves common endpoints to read, add tags and annotations, and other operations. It just needs the user's storage endpoint and authorization to allow them to access their data. I feel this is going to be the most challenging.

    Let users create their own clients that render this for users. Just like Telegram and Matrix.

    This idea resurfaced recently because I wanted to try getrecall.ai but it looks too expensive and I am worried about privacy. Having a setup like this would allow me to plugin a local LLM to this system as well.

  • by xandrius on 5/25/25, 9:15 PM

    Started working on a geo-location game about birdwatching. Imagine Pokémon GO but for taking photos and audio recordings of birds around the world.

    Planning to have a first testing session some time next month. Really excited but still lots to go!

  • by jason_zig on 5/26/25, 11:54 AM

    Working on: https://www.zigpoll.com a contextual micro-survey tool solo.

    I'm now supporting over 30K clients and over 40 million survey responses. Naturally lots of things come up when scaling a project solo heres a few:

    - Optimizing existing reporting dashboards

    - Improving onboarding experience

    - Tapping new growth channels (Organic SEO, Paid ads, Integration marketplaces)

    - Resolving customer support tickets and minimizing ticket flow in general

    Lots of things come up which always keeps the work interesting. It's probably time to scale past one person though so that's next on the docket!

  • by smeej on 5/25/25, 9:56 PM

    I'm just trying to get my ideal PKM collection system working the way I've always wished it would. It involves trying to coax an LLM into writing code for me when I'm not a developer myself, so that's been an adventure.

    All I really want to do is be able to clip/save articles (and maybe generate transcripts from videos) from my phone or computer, read them in KOReader on a Boox tablet, and then export them and my eBook notes into Logseq, but every time I think I have it figured out, some project pulls a rug out from under me and I end up back at the drawing board.

  • by axegon_ on 5/25/25, 7:45 PM

    Fully open source cinematography drone. Spoilers: I only started a few weeks ago and I've got a long way to go still. Currently prototyping the gimbal for more context and wasting a ton of PLA in the process.
  • by 0x000xca0xfe on 5/25/25, 9:49 PM

    I just finished my useless Brainfuck compiler ( https://news.ycombinator.com/item?id=44087363 ) and was thinking of a more novel application that hasn't been done already, like going the other direction and turning RISC-V assembly back to Brainfuck code. Currently trying to get MD5 work...

    Also another fun idea I want to try is to let the Claude design a new programming language, i.e. where the AI makes all the decisions and goal-settings and I just help it instead when it's stuck.

  • by jlivin on 5/26/25, 3:24 PM

    I'm building Codus — a privacy-focused, offline-first toolkit for developers with AI enhancements where they make sense. It includes tools like offline chat, a Markdown editor, UUID generator and a JWT decoder. LLMs are pulled and run locally via Ollama, keeping everything private and fast. I'm currently adding a database client, regex tester, text diff tool, and more. https://github.com/JamieLivingstone/codus
  • by ludee0 on 5/26/25, 8:12 AM

    I’m hacking on a tiny open-source/self hostable “prompt vault” so you can stash prompts and personas once and use them with whatever AI model you’re playing with today (or tomorrow). Right now it’s just a single-binary server with a SQLite file next to it—add / edit / tag in a simple UI, then copy or share. Next on the list: a lightweight browser extension that pops your saved snippets anywhere there’s a text box. Maybe it could grow to a more serious prompt testing/comparison pipeline, prompt templating etc
  • by azianmike on 5/26/25, 3:56 AM

    A free DocuSign/e-sign alternative https://useinkless.com/

    Andrew Wilkinson tweeted the other day "I just found out how much we pay for DocuSign and my jaw dropped." https://x.com/awilkinson/status/1892638803505868824

    So I thought "how hard could this be?" and decided to build a free alternative that's UETA and ESIGN act compliant!

  • by kenrick95 on 5/26/25, 12:36 PM

    Still [1] working on my travel planning web application: https://ikuyo.kenrick95.org/ (repo https://github.com/kenrick95/ikuyo )

    This is an example view-only trip: https://ikuyo.kenrick95.org/trip/2617cd98-a229-45d4-9617-526...

    So far it has:

    - Timetable view, with drag-and-drop support. I think it will be useful for planning the activities as I need to be able to quickly swap activities - List view. I think it will be useful for actual travel itself as the day go, I'll need to focus day-by-day - Maps. To make it easier to plan nearby activities, but I think I still need to rely on Google Maps or other kind of maps since I still need the navigation/direction in-between activities - Sharing & comments. Since I plan to use it to collaborate the travel with my friend, this is a must-have feature for me. - Expenses. This is still quite basic but maybe I should also track who owes whom...

    I think now I'm happy with the feature set and will start planning my travel using this to polish the UX :)

    [1] https://news.ycombinator.com/item?id=43818652

  • by pizzly on 5/25/25, 11:04 PM

    https://negativestarinnovators.com We been working on Thieves which monitors websites using AI agents. Users set natural language conditions for websites and get a email, Telegram, Discord, Webhook once their conditions has been met. We also have a REST API replicating the full functionality of Thieves.

    Currently working on making it even more reliable, navigate pages and understand website images not just the text of the webpage. Also getting ready for a Product Hunt launch.

  • by pseudocomposer on 5/26/25, 12:47 PM

    I’m in the midst of reviving https://beatscratch.io (https://github.com/falrm/BeatScratch-Flutter). I’ve let it sit unmaintained (because it’s been “good enough” at its job) for a couple of years, through the addition of null safety to Dart and numerous Flutter changes (though I have to say, its API stability over this time is pretty impressive!). I’ve also GPLed the code in that time and the new version will also be under that license.

    Once I’ve got at least the iOS and web release pipelines working again, I plan to replace its Reddit integration/sharing features with an implementation based on https://jonline.io (https://github.com/JonLatane/jonline), the AGPL, Rust/gRPC-based social network I’ve built in the intervening time.

    I’m also planning on adding more detailed (left to right audio) panning and other output controls, oriented towards using BeatScratch live with other musicians. My hope for this is to use it to complement my own musical practice I’ve been working on, outside of all this 1s-and-0s programming time.

  • by puskark4 on 5/27/25, 3:58 PM

    A easy way for users to detect whether or not they are being scammed/spammed/phished. Link: https://isthisspam.org

    Built the first product, which is email based where users email/forward suspicious messages to check@isthisspam.org and get a response back. Next up is a chrome extension, for now will have to use cloud providers but hoping to make it fully locally

  • by quantas on 5/26/25, 9:31 AM

    A "native" LLM chat application that looks very similar to ChatGPT but all chats are saved locally and you can use multiple providers. The reason I've built this is because I've used many "api wrappers" but none of them felt as good as for example ChatGPT's or Anthropic's interface. So the goal was to build the best "api wrapper" possible with no subscription. https://anylm.app
  • by TkTech on 5/26/25, 12:55 AM

    https://tkte.ch/chancy/

    https://github.com/tktech/chancy

    Chancy is a postgres-backed task queue for Python that scratches a lot of the Celery itches. It's not meant for folks that need to run a million tasks a second, but for the majority of projects (many millions per day) it offers:

    - Robust job support, including timeouts, memory limits, retries, global uniqueness, global rate limiting, scheduling (cron and "in 10 seconds"), priorities, etc...

    - DAG based workflow plugin

    - It's asyncio-first with support for threading, multiprocessing, asyncio, and sub-interpreter tasks so each job can use the optimal concurrency model. Workflows can mix tasks across multiple queues and concurrency models.

    - Can be embedded inside your existing ASGI servers - great for things like development docker containers or containers deployed on say, unraid.

    - Worker's handle scheduling (no need for `celery beat`) and have an optional built-in dashboard.

    - 1 infrastructure dependency (postgres) and 1 required package (psycopg3) - with everything else isolated in optional plugins. - Dynamically re-assign queues to new workers based on tags, add, pause (with auto-resume), modify or destroy queues at any time.

    - Highly observable - unlike Celery, you can just query your database when needed to see the entire system state

    - Portable - Linux/Windows/OSX

    - Permanently free and open-source without any "premium" or paid features.

    - Django integration - ORM/models, admin, and django auth integration for the dashboard.

    Chancy is a young tool, but is used in production environments with tens of thousands of users and billions of jobs run with great feedback from early users:

    > ...thank you for this amazing library...

    > hey, first thanks for such a great library! Chancy has worked incredibly well, and its modular design has made it a pleasure to use. Super lightweight but feature-full; it's a hard balance to strike.

  • by tunesmith on 5/25/25, 8:35 PM

    I've been working on a calibration website / app.

    Along the lines of predictionbook, metaculus - something that helps you be "well calibrated", but more playful/fun than metaculus.

    It doesn't have a lot of upside - predictionbook actually went offline due to lack of interest. But it was a good excuse to try out some vibe coding, and learn react native (I've mostly been a backend programmer).

    In an attempt to make it more engaging and fun, I decided to have it focus on sports picks. Also partly because calibration graphs need to have a lot of predictions to yield any reliable information about your calibration.

    I got it up in time for March Madness and about 25 of my friends joined and it was a good time. I nagged and reminded them a lot about about 15-20 of them predicted all 63 games, by picking the winner of each match and what their percentage confidence was. I had a leaderboard and live-blogged and gave silly awards.

    I later added support for multiple "tournaments" and currently have tournaments going for NBA Playoffs and NHL Playoffs, but interest is waning. Of my friends, only 2-3 others are still regularly predicting.

    Maybe it'll be more fun for the NFL season but I might also let it go a bit dormant.

    Biggest challenge is that there isn't really a bulletproof way to rank people if people only predict some games in a tournament. I've tried all sorts of things, minimum # of games, bayesian kernel smoothing, but it's ultimately arbitrary when choosing how to penalize someone for not participating.

    If I were to continue I'd be looking at things like automatically integrating with sports apis and odds/bookmaking apis, allowing users to create their own tournaments, etc. But ultimately, the UX of the site isn't much more than making a prediction, and then checking back later when the game is over to see your score. Not much more reason to hang around on the site than that.

  • by BrandiATMuhkuh on 5/26/25, 2:10 AM

    An agent based simulator with LLMs. When I did my PhD in 2016 I used Agent Based Simulations to predict how to influence humans with chat agents on a large scale. The main criticisms with such simulations is always the realism of the agent (and network).

    Now, with LLMs, this got much simpler. As LLMs are really good at mimicking humans.

    The first application will be to simulate a LinkedIn post against your own (virtual) followers. I grab your actual LinkedIn followers, "turn" each one into an LLM and see how they react.

  • by serezeapp on 5/29/25, 2:53 AM

    Sereze Breathing App — an AI-powered, offline breathwork coach for iOS and Apple Watch.

    Sereze guides personalized breathing techniques like Box Breathing, Yoga Nidra/NSDR, and Silent Meditation, tailored using your Apple Health data (HRV, HR, sleep). It works completely offline with no logins or server sync — just phone and your Apple Watch.

    It tracks heart rhythm and variability in real time during sessions, then uses LLM/GenAI to offer personalized insights into your nervous system health, sleep recovery, and stress resilience. You can even ask it questions post-session and receive contextual responses.

    Recent features include TTS-guided breath cues, REM/Deep/Core sleep stage breakdowns, and a silent mode for mindful journaling or meditative tracking.

    Would love feedback or collaborations! https://apps.apple.com/us/app/sereze/id6736566597

  • by I_am_tiberius on 5/26/25, 3:17 AM

    I previously worked in Finance, where collecting forecasts and internal data from colleagues - often using Excel - was a recurring pain point. Existing systems sometimes covered part of the process, but their inflexible data structures made it difficult to adjust them for new use cases. Therefore I’m building a flexible internal data collection platform: it supports multidimensional data, custom workflows, a rules engine, automatic consolidation, and a range of configurable widgets.
  • by denys_potapov on 5/26/25, 8:06 AM

    I'm working on a block-based visual programming environment for kids — a sort of Scratch alternative — but instead of inventing a new language, it's a subset of Elixir. I'm using Google’s Blockly to generate real Elixir code from the blocks.

    Right now, I'm building a Space Invaders clone in Elixir with LiveView, and integrating Blockly so the game's core logic can be edited visually. Hoping it becomes a fun way to learn both functional programming and web dev.

  • by monkaiju on 5/25/25, 10:42 PM

    CopDB (https://app.copdb.org/)

    A community powered, wikipedia-like, database for tracking police and their activities.

  • by bilater on 5/27/25, 7:55 AM

    I built a workflow to auto-generate highlight clips from long videos.

    I've been experimenting with a custom workflow to turn long-form videos into short, engaging highlight clips. I know a bunch of startups are in this space, but I wanted to build something lightweight and flexible just for fun — and ended up integrating it into one of my products.

    Here’s the general flow:

    Transcribe the video Use tools like Whisper, AssemblyAI, or Deepgram to get an accurate transcript.

    Extract interesting clips Feed the transcript into an LLM (I recommend Gemini because of its long context and quality) and prompt it to segment the video based on criteria like "viral", "engaging", "funny", etc. Make sure it returns timestamps.

    Generate the clips Use ffmpeg to slice the original video using those timestamps.

    (Optional) Auto-crop for vertical If the user selects a mobile/short-form format, use something like Sieve to auto-crop and center the subject for vertical (9:16) output.

    (Bonus) Enhance captions Run the extracted clip transcripts back through the LLM to pick out keywords or phrases to emphasize in the captions.

    Add captions with styling Use Remotion or similar to render the clips with styled, animated captions. The component handles logic for timing and highlighting.

    Render and download Batch render your clips and you’re done.

    I used this exact pipeline to build a feature in one of my tools: https://www.shortsgenerator.com/highlights-generator

    Appreciate any feedback!

  • by manuel2258 on 5/26/25, 7:27 AM

    A small web Podcast player that simly does its core job properly. Meaning working autoplay, state syncing and good flaging of finished episodes. There are so many players who don't get that right, especially when listening to 'drama' Podcast, which have a kind of different usage pattern then tradition Podcasts. Once that is working I'm also keen on exploring automatic blocking of advetisment segments, but that is certainly a harder Problem.
  • by RobinL on 5/25/25, 9:15 PM

    I've been experimenting with whether I can use LLMs to produce interactive maths explainers for kids. There are a few examples here: https://rupertlinacre.com/

    Unless I'm missing something, it's amazing how few free, _high quality_ materials are online.

    Ultimately I'm interested in two things: genuinely fun games that make you do some maths, and quality visualisations that help make concepts easier to learn

  • by jobswithgptcom on 5/25/25, 10:17 PM

    https://diffwithgpt.com is a tool that summarizes GitHub diffs using a locally hosted Qwen/Qwen-8B model. It currently indexes a small set of Go/devops repositories and enriches commits with AST derived context to improve semantic accuracy.(only past 3y of commits for now) The goal is to evaluate whether lightweight, local LLMs can provide meaningful changelog summaries. Any feedback welcome.
  • by caseysoftware on 5/26/25, 1:44 AM

    Updating https://webhooks.fyi/ as a resource on designing, building, and consuming webhooks.
  • by dvcrn on 5/26/25, 3:40 AM

    microfn.dev - https://microfn.dev

    It started out as a cloud runner for small (mostly pure) composable javascript functions that we run for you in the cloud. So whenever you have some small code snippet that you want to run, you can hit up microfn.dev, paste your code and then plug it into wherever you want (pipe into the terminal, use from MCP, add a cron to it, add to Siri shortcuts, use for home automation, ping it with webhooks, etc)

    Now we added agents support, so you can have autonomous AI agents take your functions and decide when to use them. Even better, you can hook microfn into a MCP and have anything that supports MCP use those functions as well!

    Suppose you need a new thing that your agent should do, you could ask the agent (whether that's claude or cursor) to compose a new function, add it to microfn, then use it itself going forward!

    microfn.dev wants to be a toolbox for composable small tools. Imagine a toolbox at home with a bunch of hammers and screw drivers that you collect, share, and use for different purposes.

    Some actual examples:

    - Pull data off services (twitter, etc)

    - Store data from sensors somewhere

    - Give agents tools to talk to your specific systems without needing to write an entire MCP

    - Wrap complex logic (eg slack auth + sending a message to slack) into a function and add it to a Siri shortcut, so you can quickly send messages to a specific channel with a ping or curl

    Still very early alpha (beta-ish), but very excited about this

  • by Thomas_perez13 on 5/29/25, 6:28 PM

    Agent builder vs “Cursor for APIs” — which dev tool would you actually use?

    Hey everyone, I’m building my next project and would really value your input. I’m exploring two directions — both designed for mid-to-senior technical builders: AI Agent Builder: Create complex, production-ready agents from plain text in minutes. Fully code-ownable, transparent (not a black box), and easily connectable to modern tools — even the latest YC startups with APIs. Cursor for APIs: A dev-first tool to connect to any API instantly. Just type “build a RAG system for…” and it suggests the best tools, then generates the right code and surfaces the latest docs — including niche APIs. Think of it as a fast, intelligent API library with copy-paste-ready code. Which of these would actually improve your workflow?

  • by anttiharju on 5/25/25, 8:41 PM

    On https://github.com/anttiharju/vmatch as a hobby. It's starting to get to a workable state, I'm using it to manage Go and golangci-lint for the project itself. It even works with the Go vs code plugin.

    I think many version managers make things unnecessarily difficult, especially if one hops from one repo to another. vmatch automatically uses and installs the right versions.

  • by jpc0 on 5/26/25, 12:39 PM

    Only in the conceptual stage right now. So far my thoughts are.

    An app framework targeting modern C++ (>C++20) based on Boost.Fiber and stdexec( sender/receivers when C++26 releases)

    I got inspired by a recent Java talk[1] from a Netflix employee about how they are building. I have the pretty strong opinion that async/await are implementation details and shouldn’t be exposed in APIs. They effectively have the compiler/runtime generate a state machine for you and you wouldn’t put a state machine in an api. Using C++ though we do have low level access to the CPU and there is no reason we cannot just use stackfull coroutines. This allows you to write literally synchronous code but it will defer blocking operations to an even loop and allow concurrency.

    For GUI at least in the beginning Im thinking that I just spawn a native window and it’s up to you how you draw to that. I’m targeting something basic on linux myself which means it will probably just be direct calls to the wayland compositor to create a window. Getting a context etc will be up to the user since my idea would be in windows we use C# and on macos we use swift for UI. Documenting and building tooling around getting those languages integrated feels like it would provide more benefits than actually trying to reinvent the wheel in C++.

    Likewise HTTP client will just wrap libcurl, for server side Im actually thinking of just calling into golang. HTTP servers aren’t the hard part, it’s all the infrastructure around it that is the hard part and well golang handles that better…

    1. https://youtu.be/XpunFFS-n8I?si=olBE3W0AMicUZM5c

  • by mr-karan on 5/26/25, 10:29 AM

    I'm working on Logchef: https://github.com/mr-karan/logchef

    It's an open-source (AGPLv3), purpose-built log analytics UI specifically for ClickHouse. I've been using ClickHouse for logs and love its power, but found the existing UIs either too heavy, too focused on ingestion (which we already have covered with tools like Vector/Promtail/Fluentbit/Logstash etc), or not ClickHouse-native enough.

    Logchef aims to be a lightweight, powerful log explorer that sits on top of your existing ClickHouse setup.

    Key things:

    - Schema-agnostic: Works with your existing ClickHouse log tables. No need to change how you store things.

    - Dual Query Modes: Simple search syntax (e.g., level=error service=api) for quick looks, and full SQL for complex analysis when you need to dig deep.

    - Lightweight & Focused: Single binary, easy to deploy. It doesn't do ingestion, letting you use best-of-breed tools for that.

    - Team-centric: Built with multi-tenancy for teams and access controls for different log sources from the get-go.

    I've got a demo running at https://demo.logchef.app if you'd like to try it out. It's still evolving, so feedback (especially from other ClickHouse users) would be super valuable!

    Wrote an announcement post with a bit more detail: https://mrkaran.dev/posts/announcing-logchef/

  • by dd_xplore on 5/29/25, 10:29 AM

    I have been trying to setup ultra low cost rdp clients program for schools using RPi Zero 2w.

    This is mostly a hobby/community help project. Majority of schools in my area are either not required with computers or they have lots of older ones with no funding to maintain our modernize them.

    I'm trying to setup everything within VPN (either wireguard or tailscale). I'll most probably go with tailscale so I can use the subnet router.

    The zero would would run the older RPiOS (32 bit) and would autostart a rdp session using xrdp client. It's pretty usable for mostly static work that students need in schools.

    Each RPi unit would cost around ₹2500 ($29) which includes all the adaptors, power supply, sdcard etc.

    On the server side I'm running two Ubuntu server OS VMs (inside proxmox) configured with XFCE4 and KDE.

    The work is still in progress, I'm yet to iron out major bugs.

  • by prvnsmpth on 5/28/25, 2:40 PM

    https://casepro.club

    A platform for consulting aspirants to practice business case interviews.

    Finding case prep partners is a major pain point for B-school students/consulting aspirants. Fortunately, frontier AI models are now good enough to function as surprisingly competent case interviewers.

  • by dwoobat2467 on 5/26/25, 6:09 PM

    Im working on a setup converter for the F1 Game. I hate searching for setups and things, and I already have dry setups for every circuit, so I'm making a GUI app in PyQT (not gonna lie - maybe not the best choice but im comfortable in python, and its not critical to be fast so i guess for now its fine), where you input the setup values, and it converts them to a (pretty good - for me) wet setup for the track, by changing some values here and there.

    I'm going to add track guides to it, in the hope that, eventually, I don't have to google for track guides or anything, I can just have them all in one place for me.

    I also want to make my own overlay by analyzing UDP data that the F1 games export, because I play on xbox, and my shitty laptop probably doesnt have space for simhub - but mainly because its cool. If i can figure out how, I might also integrate some AI thing to comment on improvements you can make to your driving based on the values too!

    I'm a student still so the code organization at the moment is literal trash but im working on it - when it's at a point where even I don't cringe looking at it I'll post it here!

  • by burgerquizz on 5/25/25, 9:47 PM

    I'm working on an AI web game generator for businesses. I spent a year developing our custom game engine to build a few games that didn't work, but I made the game engine to have reusable modules we can reuse for creating new games quickly . Now I've pivoted to allow anyone (business especially) to create new games on the fly.

    here the games result so far: https://playcraft.fun

  • by kofta on 5/26/25, 9:10 AM

    Got me a iCE40 based FPGA which I'm playing around with Verilog and an opensource toolchain (icestorm, yosys and nextpnr) and using this as a reference https://github.com/BrunoLevy/learn-fpga/blob/master/FemtoRV/...
  • by sothatsit on 5/26/25, 1:04 AM

    I recently strongly solved the Royal Game of Ur (https://royalur.net/solved), and am now back to the less academic pursuit of working on our implementation of the game.

    Funnily enough, players are much more excited about the achievements I am planning to add than they ever were about us solving this 4000-year-old board game. I guess you've got to pick your audience.

  • by oliwary on 5/25/25, 10:57 PM

    My favorite sideprojects are daily games. One I am currently enjoying building is VideoPuzzle: https://videopuzzle.org/ where you have to unscramble a video split into 4x4 tiles.

    We are up to almost 200 puzzles, with around 700 players per day. I've become much better at finding videos that work well as puzzles and am working on adding small quality of life updates.

  • by samsk on 5/26/25, 5:41 AM

    I'm building MLSync.io [1], an ETL platform that helps real estate companies easily access and use MLS (Multiple Listing Service) property data without the technical headaches. I've originally developed this for internal use in an IDX startup, but the complexity of RESO synchronization led me to spin it off into its own dedicated tool.

    [1] https://MLSync.io

  • by encom on 5/26/25, 2:23 PM

    Robot technician/builder and I'm working on finding another job, because I just got laid off. Shame. I liked this job (mostly), because I could combine craftsmanship (I'm an electrician) with nerdy electrical and hardware/software/mechanical debugging and occasionally development. And I learned so much. Onwards to new things I guess, but I loathe the job application process.
  • by reifcode on 5/26/25, 7:24 AM

    I hacked together a way for my Kindle PW running KOReader to connect to my self-hosted Calibre catalogue (OPDS) via Tailscale (PW5 is tricky) with a simple Go program.

    My brother and his wife would like to have the same setup, but it’s definitely not user-friendly, so I’m trying to figure out a one-click way to set everything up so you can have your own private ebook catalogue on the go on the device of your choosing.

  • by allenleein on 5/26/25, 7:07 AM

    AirPosture: Turn your AirPods into a posture coach on macOS

    A macOS app that uses your AirPods' sensors to catch bad posture in real time.

    How it works:

    Real-time tilt tracking – Your AirPods already have the tech Customizable alerts – Adjust sensitivity so it nudges you only when needed Prevent strain before it starts – Stop neck pain and headaches at the source

    Demo:

    https://youtu.be/UEOla3WBy1g

  • by dhavaln on 5/26/25, 1:30 PM

    I am working on a simple tool to help founders:

    StackAdvisor (A tech-stack advisor for MVPs and beyond)

    - Understand the idea, team, budget, skillset, preferences (cloud services, language, frameworks), time to market, etc

    - Generate smart questions and iterate based on answers

    - Suggest rationale optimal architecture to begin with and implementation detail

    - Include In Scope / Out Scope tasks, Week-1 to Week-12 plan

    - Suggest low-code/no-code/AI-assisted tools for implementation

  • by oofoe on 5/26/25, 12:49 PM

    For the past several years, I've been tinkering on and off with something that might be called a "game engine", except there's not enough of it. More of a "conceptual framework", or maybe "organizing principle". Basically, I cut the idea of the Entity-Component-System down to the bare minimum and provide some structure and queries.

    Here's a presentation, includes examples: https://hg.sr.ht/~oofoe/candheat/raw/dox/intro.pdf?rev=tip

    It's fairly free form, so you can do almost anything you want, but still structured and "legible" for computers and the person debugging it. I wrote it in a Lisp that compiles to JavaScript, but there's no reason you couldn't implement it in any language that supports associative arrays -- idea is that the language has most of what we want, just need to organize it a little. I think the idea is useful enough, that it's potentially useful for more than "just" games.

    Repo with several more-or-less worked examples: https://hg.sr.ht/~oofoe/candheat

    Recently used it for a Lisp Game Jam entry, which someone described as "Helltaker meets the Magic School Bus": https://oofoe.itch.io/class6

    About 800 SLOC, compiles down to just under a hundred lines of JavaScript. This includes the utilities, the "engine" (keyboard handling, overlays, text and art composition, animation, sound effects, etc.) and the game logic itself (which includes a level editor).

  • by haiku2077 on 5/26/25, 2:13 AM

    Converting my home server from Docker + Docker Compose to Podman + systemd. (The server runs self-hosting for my movies, TV, ebooks, comics and photos, networked to my other devices via Tailscale).

    The DevEx isn't quite as easy, but I'm very happy with the final result. I don't have to run the overhead of a Docker Engine anymore, the network policy is far simpler to write and audit, and I can use the same logging tools for both containerized and non-containerized services.

    The main hurdle has been file permissions for the mounted volumes for my data; Podman is rootless by default, which means you _should_ build your containers to run as non-root UIDs/GIDs and map them onto host UIDs and GIDs, then grant permissions for those host users and groups to access your data volumes. In practice, the easiest path is usually to run Podman in rootful mode, which is not a best security practice but avoids the difficult-to-troubleshoot file permission errors if you don't do the UID/GID mapping correctly.

    However, unless you are really trying to optimize for overhead/performance, you should probably use k3s.

  • by kacesensitive on 5/25/25, 8:20 PM

    Thought it was goofy that I was still reading newsletters through my inbox. I really don't want to open my email unless I'm working. Anyways, some friends and I made Scrollz to fix that and also add some cool features to the newsletter reading experience. AI summaries, newsletter discovery, audio narrations, etc.

    https://www.scrollz.co/

  • by _kush on 5/26/25, 3:36 AM

    https://lookaway.app

    I'm working on the next major update for LookAway. I'm improving the wellness reminders to be smarter - instead of nagging you on a timer, blink and posture alerts now only trigger when you actually need them.

    Also adding productivity stats so you can see how taking proper breaks during prolonged screen time affects your work output.

  • by jhunter1016 on 5/26/25, 12:39 PM

    I’m working on Orbiter, simple static web hosting that allows anyone to upload a directory of files, use a CLI tool, or use a GitHub action to host their sites and apps in seconds.

    My co-worker and I started this as a side project because we were building so many sample apps, proofs of concept, and engineering as marketing apps and we were feeling more and more locked into Vercel every day. So we wanted to go back to client and server separation and when we did that, we realized most hosting providers have moved toward server-side rendering as the default.

    Client-side rendering isn’t for everyone, but plenty of people still make simple websites or even complex CSR web apps and don’t want to deal with fully integrated solutions like Vercel (and Netlify now to a lesser extent). Plus they want the flexibility of choosing different tools for their frontend and backend.

    This remains a fully bootstrapped side project for us, but it’s gotten the most traction of any side project either of us has worked on.

    https://orbiter.host

  • by seanwilson on 5/25/25, 10:20 PM

    A tool for creating custom/branded palettes that have accessible WCAG contrast by design:

    https://www.inclusivecolors.com/

    No AI or autogeneration stuff, more like an advanced editor that lets you tweak large sets of colors to your liking and test they pass contrast checks in advance before you start using them in your UI/designs.

  • by henadzit on 5/26/25, 10:03 AM

    I'm working on a open-source schema migration tool for tortoise-orm. tortoise-orm is a mature Python async ORM but it lacks a good migration tool. It isn't a super exciting project but it is something that people request over and over again.

    https://github.com/henadzit/tortoise-pathway

  • by martin-adams on 5/25/25, 11:06 PM

    I'm working on a resume review service. Really simple, submit your resume and I'll record a video analysis of it. I created it because every so often I get asked to review someone's resume and they've found it very helpful, and it's my way to address the poor resumes I've received when hiring.

    https://resume.fail

  • by mgl on 5/25/25, 8:12 PM

    Assembling my CPS5 underwater drone: https://www.cpsdrone.com/
  • by nnq on 5/26/25, 6:04 AM

    DragoChat - https://www.facebook.com/ai.drago.chat <~~^(o_o)^

    TINY attempt to fight the growing divide between "AI haves" and "AI have-not" with

    - PREPAID access (+ bring-your-own-API-keys alternatives for more technical users) to premium models (ChatGPR plus and above)

    - multi-channel access (SMS/MMS, Whatsapp + many many more) to give ANYONE, ANYWHERE, regardless of how non-technical they are access to absolute TOP/SOTA model advisors with easy access in their language + fact checkers + more (think african farmers looking for intelligence to grow best crops, former delinquents lookeing for rehavilitation, absolutely anyone deservers ACCESS TO INTELLIGENCE)

    - zero lock-in - paid (freemium, but no adds) product, but 100% open data formats, sharing, import/export etc.

    STAGE: prototype for personal use as a whatsapp bot+ webui, somewhat usable for us but still wip, next stage is building accounts and payments for EU access, next for US/international

  • by terrib1e on 5/26/25, 3:58 PM

    I'm working on Valuate! An AI powered hotel acquisition underwriting platform. I'm currently iterating based off of feedback I've been collecting from brokers and hotel investors.

    I'm also available for other work/projects. I'm a full stack developer with a decade of experience working in government tech and real estate. Feel free to reach out!

  • by dainiusse on 5/26/25, 11:58 AM

    Working on https://sauna-assistant.com - app to make sauna rituals in home sauna - from ambient music and time tracking to lighting automation

    It is a personal itch for my home Sauna. Lots of stuff to manage, but trying to work on consistency as a priority as I dropped the ball in many previous attempts.

  • by mazzystar on 5/26/25, 6:56 AM

    I'm making a fun app that allows people to share what they're doing right now, and you can see what others are doing right now. It reminds me of what it was like when the internet was first born - seeing what others are living makes me not feel so alone anymore.

    If you'd like to play, visit: https://cike.app

  • by andrewrn on 5/26/25, 1:50 AM

    I am working on an agent that can tutor you in introductory physics. Beyond being a chatbot, it can summon and mutate several kinds of diagrams and graphs to teach concepts like kinematics, energy, momentum and hopefully much more down the line.

    Here’s a very early version for circuits: https://www.circuit-tutor.xyz

  • by fregonics on 5/30/25, 10:42 AM

    We all have those tasks in our applications that are not common enough to warrant a project (and another deploy) to make an admin panel, but also are painful to do, because they are tricky or time-consuming. So I'm working on an internal tools building platform to quickly wrangle some admin interface do automate them.

    This is currently just a prototype I'm developing, but I'm honestly eager to receive some feedback, as I'm not completely sure about the direction.

    https://github.com/luizgfranca/synthreon

  • by keyserj on 5/27/25, 1:33 PM

    A webapp to improve how we discuss, model, and understand problems https://ameliorate.app/ (repo: https://github.com/amelioro/ameliorate).

    The core idea is to ground discussion in a causal diagram that ties together problems & solutions, then each node/edge can have structured details (importance score, arguments, unknowns, relevant facts, etc.) to help clarify & refine the information. It also has some features for working with this information, e.g. comparing perspectives, using a table to evaluate tradeoffs between solutions.

    Right now, you basically need to be a power user to get benefit from it, but I've got a lot of ideas for making it smoother, and I'm slowly working through them.

  • by quintes on 5/25/25, 9:56 PM

    I’m working on these in the wee hours

    * prfrmHQ SaaS The modern way to manage performance reviews, set clear objectives, and ensure alignment across teams or individually — all in one place

    https://prfrmhq.com

    see https://news.ycombinator.com/item?id=43538744 [Show HN: My SaaS for performance reviews setting goals and driving success] https://youtu.be/ygvKdgiKRj4?si=Q9ael-oCLEGKMIgN - Shows I can use AI and I've integrated into AWS Bedrock

    - Shows I can integrate with Stripe for payments

    * Consulting (Architecture, Strategy, Technology leadership and advisory) - I'm working on getting my consultancy started. If anyone wants the kind of skills I offer here let’s talk https://architectfwd.com

    * Next SaaS - Starting a SaaS for managing core strategy and technology concepts.

  • by alprado50 on 5/25/25, 11:24 PM

    I'm migrating my blog (https://alprado.com/) to a custom solution built with Laravel. I know the HN community appreciates simplicity, but in my opinion, hosting static HTML is almost as easy as hosting PHP. However, PHP gives you the flexibility to build an interactive and optimized CMS.
  • by pfista on 5/26/25, 1:22 AM

    Working on a new tool to automate busy work and save time for founders, engineers, support reps, and marketers.

    Most ai apps are focused on reading and synthesizing data, but none are great at “write” actions across apps.

    We’re focused on making the simplest and easiest way to use ai to control your apps and get things done

    https://stride.systems

  • by nikodunk on 5/26/25, 3:25 AM

    My side project is Daily Optimist - a super-simple app that asks you a single question every day to train positive thinking and boost your mood. Mainly for personal use.

    https://apps.apple.com/us/app/daily-optimist-think-positive/...

  • by trevinhofmann on 5/25/25, 11:19 PM

    I recently launched Early Access for my AI-powered service for automated bug reporting, PR review, fearure implementation, a difficult test/documentation/refactor suggestion PRs.

    It was in the works for about a year, and I'm now trying to find ways to make it more marketable and useful.

    The three main things I'm working on are:

    1. GitLab support (GitHub only at the moment) 2. A demo on the landing page that doesn't require any sign-up. 3. Better "vibe coding" experience through the Chat interface for those who want it.

    I built it with TypeScript on the front- and back-end, React, Node.js, and PostgreSQL. And I over-engineeres it, as one does, with a Redis cache and websockets to push the latest data to web clients so the latest info is always shown without needing to refresh. I'm using the OpenAI API right now, but I want to switch to local models when I can invest in the hardware for it.

    Edit: https://mysticode.ai - Would absolutely love feedback.

  • by jprokay13 on 5/26/25, 12:45 AM

    I built a web app for looping specific sections of YouTube videos as a way to practice songs.

    https://proloops.jprokay.com/

    Slowtube was a huge inspiration for me (I’ve spent many hours with it), but I wanted a way to save my loops and continue my practice.

    Saving is solely to the browser’s database right now.

    Feedback is much appreciated!

  • by amorroxic on 5/26/25, 4:56 AM

    A real-time video processor in hardware:

    - static (mp4) or live (hdmi) input, hdmi output

    - a collection of effects (various distortions, color glitches, demoscene-like) applied over incoming video stream, maximum of 4 effects stackable on top of one another

    - midi controllers support (controlling actions/params of effects via CC)

    - modulation of effects params via LFO and audio events (bpm, kick, tonal detection)

    - loading of .glsl shaders (eq. shadertoy.com)

    - dynamic input resolution, output either 360p (rpi 4/5) or upscaled to 720p / 1080p (networks like SRGAN over Hailo / RPI or RK3588 with a Radxa 5B SBC).

    Given a 2nd screen (timeline editor) would love to evolve this to something like a hardware editor, somewhat in the line of DAWs in the audio world. Most things are working with biggest challenge now being building a control surface (buttons, rotaries + associated oleds, etc) and attempting laying it all on a PCB, a process I don't know much about. If there's interest welcome comments and could elaborate more.

  • by duttish on 5/26/25, 8:07 AM

    I merged the last major big thing for the android version of Tricktrapper over the weekend, it's kind of 2FA for normal phone calls, verification that you're talking to who you think you're talking to in this age of deepfake voice. There's no LLM in this, because I think that way only lies model vs model competition and nobody can win. Better to try and cut the whole vector if it's possible.

    Been chasing pilot customer but it's few companies that only have android, so I'm picking up a mac mini after work to start working on the ios version, see what's possible with the various restrictions.

    https://www.tricktrapper.com/ if anyone is curious, it's sparse of the details though. I'm working on a doc with all the technical info. The plan is to release it for free to private people, charge companies.

  • by casualmike on 5/29/25, 4:06 PM

    I'm working on a site (https://panoptic.live/) that lets you collect, watch, and share videos from different platforms.

    You can drag and drop links from YouTube, Twitch, TikTok, or Kick.

    You can add or remove streams, save mixes for later, and share them as links.

    You can watch multiple videos at once in a wall-of-video grid and navigate quickly from one stream to another. It works best on a really big screen --phones aren't really supported.

    So far, people seem to like it. I've made a lot of updates based on people's feedback since I announced it a few weeks ago.

  • by chimprich on 5/26/25, 8:38 AM

    A small, cute CLI app that gives overviews about files and other entities. I've called it `what`. It's inspired by being able to right-click on stuff in a GUI file manager to get an overview about what it is.

    https://github.com/richsmith/what/

  • by tiondo on 5/25/25, 9:21 PM

    I'm working on https://greatriftsafari.com — a travel planning platform that uses AI + local expertise to help people design and book personalized safaris in Kenya.

    Most safari booking sites are either outdated, opaque on pricing, or offer one-size-fits-all tours. We let travelers customize everything — dates, interests (e.g. big cats, birding, photography), travel style, and budget — and generate a full itinerary with lodge picks, activity suggestions, and accurate cost estimates (including seasonal pricing and transportation).

    We also partnered with local operators so users can actually book what they see — not just get ideas. The goal is to make safaris more accessible and planning less overwhelming.

    Still early, but if you're curious or planning a trip to Africa, I'd love feedback: https://greatriftsafari.com

  • by user070223 on 5/26/25, 9:02 AM

    Inspired by Steve Brunton(on YT) and his colleague, a platform that makes working on/with dynamical systems much easier in terms of sensing, modeling and controlling the dynamics. Eventually iterating quickly using SOTA techniques(compressed sensing, super-resolution(spatial-temporal tradeoff), RandNLA, ML) without the need to understand them deeply

    Sensing effectively by optimal (re)positining of the sensors (both number of sensor and physical placement) Think spatial sensor/data fusion, perhaps using more cheap sensors rather than few expensive

    Building a model of the dynamics (based on both reasonable assumption about the system based on grounded physics, and dynamical interpretation of the sensor's data (PySINDy, DMD)

    And eventually controlling the dynamics

    Love to get your feedback, ideas, if you know about such products/business etc, how could it help any business, real life application, if it interests you, anything :)

  • by AaronAPU on 5/25/25, 8:29 PM

    Just released a “Loudness Contour” audio plugin. Let’s you apply various equal-loudness contours like Fletcher-Munson, ISO-226, LUFS style K-weighting, etc.

    Fits into my “loudness series” suite of tools.

    Have 3 more in development and then it’ll be on to the next series.

    https://apu.software/contour/

  • by ramoz on 5/25/25, 9:15 PM

    Context and “memory” (not really a fan of this term and how industry uses it) are actually complex to manage for power users including humans and agents.

    While it may sound counterintuitive, the agents of today aren’t truly autonomous in that you need to really guide them and plan their actions well.

    I believe this is true today, and will be even more true when agents are guiding agents.

    We need new infrastructure for dynamic context management.

    The answer is not as simple as “hook up your agent to an MCP that pull docs from the web” … also MCP needs its own revolution. I tend to use no MCP and prefer raw agent performance.

    I’m evolving the simple concepts I built in my VS Code extension to address this. Nothing public now, but I and a few others use this everyday to feed parts of large codebases into Gemini (to build plans for Claude code, other coding agents): https://github.com/backnotprop/prompt-tower

  • by ostojan on 5/26/25, 6:05 PM

    I work on an iOS habit tracker called Spark: https://letspark.it I’ve been working on it since sometime mid-January and I post daily on Bsky on the process: https://bsky.app/profile/stojanowski.dev The app is kind of simple for now, just basic habit tracking with reminders and streak counter, However, I wait for approval from Apple of a bigger update introducing irregular habits and improving reminders’ reliability. All that with a nice-looking UI. I try to stick to the native Apple UI language, but modify it so it has its own, unique vibe.

    I treat the project as a learning opportunity. I’ve always wanted to work on some mobile apps, so Spark is my first step towards that.

  • by iamwil on 5/25/25, 7:39 PM

    A reactive notebook with algebraic effects for building backend/AI-engineering pipelines.

    Reactivity can update the state of the notebook automatically, so you don't have to keep track of which cells to execute again. Side effects are managed to make it easier to reason about while maintaining reactivity and ability to interact with the outside world.

  • by schappim on 5/26/25, 2:52 AM

    I’m building https://ninja.ai/mcp/servers — an app store for AI assistants.

    Most AI agents today are like smartphones without any apps. Ninja.ai makes it easy for anyone to install and use AI tools (MCP initially) that automate useful tasks, without needing to write code.

    Think:

      - One-click install for AI-powered tools (MCPs, Model Context Protocol servers)
      - Automatically share relevant context so tools know what you’re working on
      - “Recipes” that bundle multiple tools into workflows (e.g., check inbox → pull receipts → send summary to accountant)
    
    We’re focused on everyday users and small teams who want to get things done with AI — not configure it.

    Still early. Just launched our prototype. Bootstrapped so far, now fundraising.

    If you’re excited about agents, app ecosystems, or making AI useful to normal people, I’d love to hear your thoughts.

  • by cmenge on 5/26/25, 6:11 AM

    Working on a few 'vertical' AI apps that hopefully can bring those real productivity gains everyone is hoping for to some narrow areas:

    TenderStrike (https://www.tenderstrike.com) - AI for tenders in the construction industry. Fascinating how large and complex a tender can be, and how many there are. LLMs can be super helpful here, but there are many challenging parts to it.

    Optivise (https://www.optivise.io) - product data optimization and translation using AI. We're focusing on a niche here, helping customers to onboard onto Mirakl-powered marketplaces, but hoping to expand to other marketplaces soon. I have spent the last years before that deep down the trenches of product data management and the traditional approach isn't fun :)

  • by vladris on 5/26/25, 12:29 AM

    I’m exploring a few ideas at the intersection of tech and creative writing, starting with a modal Markdown-based focused editor: https://saturn9.studio/flow/ Still in early stages, I have more ideas than time to implement them :)
  • by stared on 5/25/25, 10:34 PM

    Making it easy to create good charts. Put your CSV data, write a prompt, and get a professional chart in any style - e.g. matching your company's website, slide deck style or blog post.

    https://charts.quesma.com/

    Now it is early alpha, but you can already give it a try.

  • by csnate on 5/25/25, 9:06 PM

    https://pwnscan.com

    A binary static analysis tool that identifies vulnerabilities.

    Right now, still just focused on buffer overflows. It can find some known CVEs and I’ve made several reliability improvements over the past month or so.

    I think I’m going to expand to additional vulnerability types soon.

  • by scroogey on 5/26/25, 7:52 AM

    I'm (slowly and haphazardly) working on https://pianobooth.com. Give it a midi file and it should visualise the playing on a piano (though I make no promises and at least currently it doesn't parse all files correctly, but it's mostly there).

    I think I've finally gotten it to a point where it's usable and it seems to work on my phone as well. Hopefully baking in the lighting for the 3d models will give a small performance boost and I don't think it will be noticeable at all with the color changes and small movements.

    I've also been going through the fastai course so hopefully I'll be able to put that to use on this project by generating midi files from audio! I might be underestimating the difficulties there but it should be fun.

  • by jblakely on 5/28/25, 2:26 PM

    A few years ago I started experimenting with embedding V8, one thing led to another and I was suddenly down this rabbit hole building a rudimentary IDE to create standalone applications with JavaScript. It was a lot of fun building all the different parts and I learned a lot porting it to macOS.

    Is anyone still interested in cross platform development for desktop apps (Windows & macOS)? Yes, it's similar to Electron, but mine uses native UI components and there are no prerequisites to get started.

    I don't want to violate any rules about self promotion, so if anyone is interested in checking it out, let me know and I can give you the link.

  • by wwall3r on 5/26/25, 4:22 AM

    I turned a game my friends and I play during March Madness into a web app:

    https://bracketmayhem.app

    While the tourney isn't going year-round, it has a demo mode where you can play through prior years (with friends! Or with yourself on another browser/device). The chat feature is admittedly half-baked and is mostly there to get my wife to quit asking about it. Will try to get that fully done for next year.

    I'm also working on another side project in Gleam just to check it out. That seems to be taking shape and once I get something decent I'll post it.

    All of these are self-hosted via Coolify on a VPS, which has almost been a project to itself (I've had it with cloud providers). I've learned a lot and it was cool to see some other self-hosting solutions in the thread here.

  • by amterp on 5/26/25, 9:33 PM

    I'm working on a programming language aiming to replace Bash. It specifically targets CLI scripts where Python or Rust are overkill, but it contains a bunch of constructs that make it particularly well suited for CLI scripts, including arg parsing, table formatting, HTTP querying, Bash command invocation, etc.

    Keen to hear people's thoughts and feedback! GitHub here: https://github.com/amterp/rad

    The docs site also contains a guide for getting started, including some of the unique features: https://amterp.github.io/rad/guide/getting-started/

  • by puapuapuq on 5/26/25, 8:24 AM

    I spent hours on prompt engineering recently and I hate it. This is for a startup and requirements change daily so the prompt has to be revamped all the time.

    I decided to develop a system that take requirements and some sample inputs as an input, then automatically evalute the outputs and fine tune the prompt.

  • by dimaom on 5/29/25, 6:33 PM

    I’m working on https://jobLetterAI.com (still in progress). The idea is to help people generate cover letters based on their resume and the job post.

    One thing I’ve found super helpful is showing users what’s missing — like skills or tools mentioned in the job ad but not in their CV. That little “gap check” makes the letters more focused and relevant.

    Still building and testing, so if anyone here has thoughts on what actually helps in real job applications, I’d love to hear.

  • by spacechild1 on 5/26/25, 11:20 PM

    Contributing to Pure data for the upcoming 0.56 release: https://github.com/pure-data/pure-data

    AOO - a C/C++ library for low-latency peer-to-peer audio streaming and messaging:

    https://git.iem.at/aoo/aoo

    https://www.soundingfuture.com/en/article/aoo-low-latency-pe...

    "game over" - a musical 2D game engine: https://vimeo.com/389378372

  • by mikewarot on 5/28/25, 5:38 AM

    I'm learning what "vibe-coding" really is, and using GitHub CoPilot to build a variant of BASIC with a permanent equals (aka declarative programming) in node/typescript (of which I know nothing, I'm an old Turbo Pascal programmer)

    Long ago, I came across Metamine here on HN, and thought it was magic... but there's a LOT of stuff in that code I don't understand.... maybe I'll do a Turbo Pascal version later? I do have code to do cooperative tasking under MS-DOS from the 1980s I wrote. ;-)

    https://github.com/mikewarot/PermEq

  • by Nhatnguyen02 on 6/1/25, 1:11 AM

    An AI tool for data analytics so that companies can get data insights by chatting, all data in one platform. I have worked at multiple start-ups, and each company struggles with getting data insights quickly and easily. Would love to hear your feedback. https://www.dataglide.ai
  • by CommenterPerson on 5/26/25, 3:02 PM

    Would like to suggest a possible need to the dev wizards on HN, and also request pointers to something good that may already be out there:

    I would like a phone app that would disable anything that a user doesn't actually need (not something like the existing google android feature that identifies apps that haven't been used in x months). It may ask a user what they actually need (for example, calling, SMS, a browser, etc.). The app would identify all the software/apps on the phone that are not required for the above needs and identify / disable them (say for example Location services). When you get a new phone one could start off with an absolute minimum.

    It would need ongoing updates, as the app universe and surveillance technologies continuously evolve.

  • by kegs_ on 5/25/25, 10:26 PM

    2 hours in and this thread is already stacked, but I'll bite since I am stuck on this problem and need help. I am working on a language learning solution that involves llms. The way I am branding it is "Anki meets Ai" because it combines a flashcard-esque method of generating complete exercises such as multiple choice, cloze, etc. with the tried-and-true SRS methodology.

    I think it works great! The problem is, I think it works great. The issue is that it is doubly-lossy in that llms aren't perfect and translating from one language to another isn't perfect either. So the struggle here is in trusting the llm (because it's the only tool good enough for the job other than humans) while trying to look for solid ground so that users feel like they are moving forward and not astray.

  • by adhamsalama on 5/25/25, 9:34 PM

    I'm writing an easy to use APM platform in a single executable (plus the database).

    I tried self-hosting Sentry recently and found out there are a lot of moving parts, which makes sense for their scale and use case.

    I was wondering if I could build something small and not multi-tenant. So I started experimenting with writing a server (in Go) that collects OpenTelemetry data and inserts into Clickhouse, an API for retrieving data/statistics (P95 in a time range, etc...), and a frontend (React.js) that displays them. All of this in a single executable file (yes, including the frontend, but not including Clickhouse).

    This is all very new to me so I'm learning Go, Clickhouse and OpenTelemetry at the same time.

    https://github.com/adhamsalama/nabatshy

  • by pizlonator on 5/25/25, 11:52 PM

    About to port libffi to Fil-C.

    Unlike most programs, which just work in Fil-C with zero or no changes, libffi needs to basically be rewritten. Instead of using assembly for reflectively crafting calls it needs to use the Fil-C zcall api. And instead of JITing closures it needs to use the Fil-C zclosure_new api.

    Should be fun

  • by loufe on 5/26/25, 1:59 AM

    Having fun vibe coding my first personal website with astro and three.js - I'd say it's working pretty well so far. I need to tone down the amount of animation and glows this, it's a little too much.

    https://www.Loufe.ca

  • by rjmunro on 5/25/25, 10:27 PM

    I've made a couple of silly browser games, http://matchmoji.arjam.net and http://matchmoji.arjam.net/minesweeper
  • by cddotdotslash on 5/26/25, 7:53 PM

    Wut.Dev - a "better" AWS console (https://app.wut.dev)

    I got tired of using the AWS console (the UI is inconsistent across services, resource-heavy, and loaded with things I don't need)

    I've built a handful of features, mostly to scratch my own itch, including:

    • Multi-region mode (select 2+ regions and see all your resources on the same page)

    • Automated diagrams (tree-style resource relationships)

    • Easy export to CSV

    • Reference matrix of AWS service/region availability

    The best way to explain it is with a demo, so I built a demo version: https://app.wut.dev/?service=acm&type=certificates&demo=true

  • by kanishkalinux on 5/26/25, 9:15 AM

    Inquisitive - self-hosted knowledge-base with a touch of LLM/RAG.

    Link: https://github.com/kanishka-linux/inquisitive

    I've been working on this on and off since last couple of months to consolidate all of my digital knowledge-base like notes/links/pdf etc with the help of LLM/RAG. It is fully self-hosted with very minimal setup instructions - which should be easily installable by anyone on their local machine.

    UI is very bare minimal. It still has some rough edges when it comes to the UI part, but usable. I've been regularly using it since sometime, and it works well (atleast for my use case) when it comes to searching and organizing personal knowledge-base.

    Feel free to try it!

  • by cornfieldlabs on 5/26/25, 12:35 AM

    I had built a social network for my friends which is working great so now I am building it for the world.

    A place to dump all my thoughts in text to people I already know.

    No photos, no clout-chasing, ego boosts, infinite scrolling, findable profiles etc.

    I created a waitlist page (code only) using Gemini 2.5 and hosted it in cloudflare pages using D1 for database.

    Waitlist page is here: https://waitlist-tx.pages.dev

    Here's the full feature list for the initial version I am building where you can leave comments anonymously:

    https://docs.google.com/document/d/1wkxk01C8ePEQ2jkwwt6p5Z7V...

    Any feedback is appreciated.

  • by nickandbro on 5/26/25, 8:18 PM

    Working on:

    https://vimgolf.ai

    It's a site where I hope to make learning vim more fun by competing with a AI bot (powered by reasoning models) when solving challenges. Looking to hopefully complete the project very soon.

  • by andjar on 5/26/25, 1:18 AM

    notd - A lightweight outliner built with PHP, JavaScript, and SQLite: https://github.com/andjar/notd

    I'm building a simple outliner focused on core functionality: hierarchical notes, backlinks, file attachments, and todo management. The goal is portability and longevity - it runs in phpdesktop as simple php, js and sqlite without compilation or complex frameworks.

    I have been a happy user of LogSeq, but the current major rewrite, intended to enable real-time multi-user collaboration, introduce a lot of complexity and I am now more worried about the longevity of that project.

    Built with assistance from Cursor, Gemini, and Jules, so vibe coding. Still early stage but functional for basic outlining needs.

  • by dalemhurley on 5/25/25, 9:46 PM

    I am working on a platform to improve product management and communication between the product team and engineers at https://Full.CX - got a few paying customers. Would love and welcome any feedback or suggestions.
  • by siddmax on 5/26/25, 7:49 AM

    I got tired of using SplitWise, personal finance app, and Tab to manage budgets/expenses. So I vibecoded a small web app (https://web.savida.ai) to do it all in one place (and pay much less for it too with no limits). Since I made it, it fills all my needs. But would be nice to get feature requests from other people if they want to use it too.

    First time trying vibe coding as a staff SWE at F, so it’s been a lot of fun to try things out. 100K+ lines of code without a single line myself. Working on a new process to one shot the mobile app from scratch (even deployment). Learned a lot that I apply to my day job. Hoping to make an agent builder next!

  • by HarshitDoshi on 5/26/25, 5:01 AM

    Just started out building a micro-agency into software engineering and consulting. I left my 9-5 jobs in engineering and big-consulting to pursue my dream of building something myself. I love to code and build software and have always dreamed of bringing in change to the landscape around software engineering services.

    https://shunyaek.se is my agency, "shunyaek"'s home-page. shunyaek refers to "shunya", meaning zero, and "ek", meaning one, in Hindi, my native language. It refers to the binary building blocks of the software & digital world. The landing-page is still under construction. Always open to feedback and crticism.

  • by nichol4s on 5/26/25, 11:52 AM

    I'm working on a MCP Server to get Starlight API documentation quickly connected to any model. I have the initial stuff setup, doing some experiments now to figure out how to optimize performance (reduce number of roundtrips, don't overload the context).

    For example, if during the conversation someone asks, "tell me how this API call works". It should be able to. 1. find the right API document (requires search) and then 2. 'retrieve' that API document. But if that API document also requires other content (eg Authentication is separate) that will require ANOTHER roundtrip. So I'm currently trying to figure out what the best flow would be for this.

  • by monsieurpng on 5/26/25, 3:00 AM

    I’m working on LearnMathsToday, a mobile app that helps students learn math in a fun and engaging way. It’s self-paced, with AI-generated questions that adapt to each student’s level. One unique feature is AI-powered marking, which gives instant feedback on written answers. I’ve also added gamification—points, levels, and a storyline—to keep students motivated. Right now, the app is based on the Singapore syllabus, since I’m based in Singapore.

    Feel free to download here: https://learnmathstoday.com/2025/03/02/learnmathstoday-app-i...

  • by ezhil on 5/26/25, 3:03 AM

    Quit my job few months back and working on an unstructured data to Knowledge Graph building tool - https://graphora.io. The goal is to make Knowledge Graph building and maintenance easier.
  • by axelthegerman on 5/26/25, 3:50 PM

    It's ridiculous that we live in 2025 and most people in North America have apartment buzzer systems that don't work with "long distance" calls or forward to multiple phone numbers.

    [freshbuzzer.com](freshbuzzer.com) does that and much more!

  • by sagering on 5/25/25, 7:45 PM

    I am working on kel, a typed configuration and templating language both written and embeddable in rust: https://github.com/sagering/kel.

    Feedback, suggestions or contributions are very welcome! :)

  • by hluska on 5/26/25, 1:59 PM

    Last December, I started building a desktop app so that I could keep all my running, eating and assorted physical misadventures in one place. I decided to build it with Electron so started profiling right away but wasn’t write home about it happy with any profilers so now I’m building a profiling tool and the fitness thingamajigger in tandem. And of course, it’s a personal project so scope creep is an issue. Now I have structured logs, full replay and so much data that this wacky little profiler makes me feel bad about all the decisions I made on the wacky fitness app six months ago.

    Which just goes to prove, if you’re slightly demoralized it’s a side project. :)

  • by fratimo66 on 5/26/25, 2:13 PM

    I originally built https://prontopic.com/ to help my girlfriend take better photos of her clothes for Vinted.

    Turns out people really like it, especially for food photography :)

  • by benstigsen on 5/25/25, 9:58 PM

    I am building a webserver using Luau[1] and Lune[2], which will be used to host my own website. I haven't been this excited in a long time, when it comes to trying out a new programming language. Luau seems to make Lua _perfect_ (except for the classic 1 based indexing). And with Lune it also includes a very simple way to serve requests, which has always been a headache to do with regular Lua in a cross-platform way.

    I am hoping this will be the way in which I write most of my future scripts and projects.

    [1]: https://luau.org/

    [2]: https://lune-org.github.io/docs

  • by patcon on 5/26/25, 4:48 AM

    A visual exploration tool for mapping large-scale public opinion data (derived from conversations hosted with the Pol.is public engagement tool), but using more advanced dimensional reduction algorithms like PaCMAP/LocalMAP:

    https://patcon.github.io/polislike-opinion-map-painting/

    Am also working on a python library to generalize the pipeline of Pol.is, so that more projects can use its features without recreating from scratch:

    https://github.com/polis-community/red-dwarf/

  • by mdolah on 5/26/25, 6:12 PM

    Recently, I upgraded some parts on my PC and started tinkering around with building a tool to show hardware metrics

    https://github.com/MahmoudDolah/linux_hwinfo64 https://pypi.org/project/linux-hwinfo64/#description

    I started out by copying features of HWINFO64 (which does not run on Linux). I'll probably keep hacking on this for a bit. It's been interesting to dig deeper into how hardware and software interface

  • by mdh on 5/30/25, 9:22 AM

    Working on restoring my late father-in-law's Lambretta scooter that he bought new in 1958 and rode all over Europe with my MIL before storing it away in a garage in the mid-60s. Frame and bodywork are solid and it's mechanically sound, but is very tired looking. Have disassembled it and am now stripping the faded and chipped paintwork off of everything ahead of a full respray.
  • by Brystephor on 5/25/25, 11:09 PM

    Reinforcement learning system. Currently trying to understand how to implement contextual thompson sampling and its details after doing non contextual thompson sampling. My YouTube history is a lot of logistic regression related videos at the moment.
  • by Tanzirul on 5/25/25, 11:32 PM

    Replyhub (https://replyhub.co), a tool that helps businesses not just monitor Reddit and X, but actually engage with the right conversations that can turn into customers.

    The idea is simple: instead of blasting you with every keyword mention like F5bot, Replyhub filters for posts where people show real buying intent. These are posts where they ask for recommendations, compare products, or look for solutions.

    It also suggests context-aware replies and helps collect leads from people who show real interest.

    If you want to reach niche communities where people are actively discussing products, it might be useful.

    Would love to hear feedback or questions from folks here.

  • by 6stringmerc on 5/25/25, 10:05 PM

    Currently developing templates and resources for a consulting business to enhance B2B and B2G contracting process - specifically selling against AI in the same space. The English language used for business is nuanced and must have factual basis, especially in Procurement and Contracting in the US, and clients therefore cannot afford to trust AI content. As such my platform and service connecting SBEs with skilled, knowledgeable Humans will provide a solid ROI.

    A totally bootstrapped, professional services undertaking with no investors needed. The value is in the knowledge acquired over a decade plus in sales support roles and learning about an underserved, viable market.

  • by ciccionamente on 5/26/25, 8:21 AM

    https://weexpire.org - An opensource tool for creating emergency notes that can be read by your trusted contacts only after your death or if you are seriously injured.
  • by vertix on 5/26/25, 8:06 AM

    We are working on open source platform for AI robotics, https://positronic.ro

    Fully open hardware and software, including ML, so that you can start building useful robots immediately

  • by mikeytown2 on 5/25/25, 9:48 PM

    https://github.com/mikecarper/meshfirmware

    CLI Meshtastic flasher that works well. No internet mesh networking sounds awesome; just the bandwidth is extremely limited

  • by cerlo_team on 5/26/25, 2:08 AM

    We’ve been working on a lightweight tool to help small teams and individuals manage and publish content across multiple social platforms — currently focusing on Facebook, Instagram, and TikTok.

    Most tools we’ve tried are either too bloated, too expensive, or limit you to one or two accounts per platform. We’re aiming for something simpler: connect multiple accounts (free up to 3 per platform), schedule posts, organize media, and view basic performance stats — no AI or calendar features yet.

    Still early, but the core workflow is live and usable. Would love to hear how others here handle multi-platform content publishing, especially if you’re doing it without a full-time team.

  • by harlanji on 5/27/25, 4:13 AM

    Building a tool chest of software for my own needs. IT for Sovereigns.

    Mostly not open source, contrary to how I have historically operated. I think I'll drop them open source as time goes on and money matters less. Kinda feels like I might make more money just open sourcing it all because of good karma tho.

    It's all in Python because that's what I could get on the $200 Windows laptop I built it with, I kept it in S Mode as a challenge because I want it to run as constrained as my customer personas might experience.

    Present stage is finding those personas and slicing the wares up into offers/products.

  • by primitivesuave on 5/25/25, 11:44 PM

    TypeScript Coach (https://ts.coach)

    While I love the official TypeScript handbook, it's not easy to play around with the code examples or approach it as a beginner. I started working on a complete TypeScript tutorial that also showcases some advanced use cases. All the code examples run in the browser, and there are some neat visualizations that clearly show what the type system has picked up.

    I've been trying to fix some of the performance issues, finish writing all the content, and adding documentation before making the GitHub repository public - right now the page can hang when loading a long tutorial.

  • by Levitating on 5/25/25, 11:47 PM

    Most recently, a tool for identifying NTP daemons and testing their capabilities: https://github.com/LevitatingBusinessMan/ntpscan

    I am also working on a web frontend for rrdtool (for graphing collectd statistics): https://github.com/LevitatingBusinessMan/collectrack

    And a wayland bar that is configured via a Ruby DSL: https://github.com/LevitatingBusinessMan/rubybar

  • by VladVladikoff on 5/25/25, 11:22 PM

    Drowning in technical debt from my 12 year old auction startup. While building another startup for the hotel industry. Wish I had more time for personal/side projects. I have a million ideas that just die on lack of time to execute.
  • by _luiza_ on 5/26/25, 9:25 AM

    Currently working on some research proposals for studying methods to detect consciousness as relational capacity in AI systems by mapping internal representations, analyzing conversation topology, and testing how consciousness-related concepts degrade and recover across different model architectures.

    In principle, using my current free time (& not only tbf) to figure out a way to fund a few positions on full-time study / audit of emergence, specifically emergence of consciousness in this case.

    Setting a basis in semantics & wanting to optimize as sense gets un-sparsed.

    Hmu if interested to figure out some of these together (agiornot@gmail.com)

  • by dennis16384 on 5/25/25, 9:20 PM

    I'm still working on Routing24 https://routing24.com - free route optimization and planning app without stops or vehicles limit.

    It's been 6 month since our first appearance on Show HN [1], and I'm working with first free users on bugs, improved workflows and UX, geocoding, solver features, future mobile app etc. etc.

    We officially crossed the limits of 1500 stops per optimization with some waste collection guys, all still running fully client-side in the browser.

    [1] https://news.ycombinator.com/item?id=41995427

  • by pravj on 5/26/25, 7:12 AM

    I'm working on restoring my website/blog.

    I stopped writing right after college when I moved to full-time work, but I want to change that now.

    Just as I started, I realized the website was hosted on Forestry CMS, which has been discontinued, so I will have to figure out how to maintain the URL structure, etc. (this is important since there are a few popular/top-10 pages for certain queries/searches [1]).

    [1]: https://hackpravj.com/blog/solving-semantris-opencv-word2vec... (for "Google Semantris")

  • by stonecharioteer on 5/26/25, 2:20 AM

    Trying to get out of burnout. I joined a company after being laid off, but the previous company has left me so burnt out that I feel... Slower. I finally fixed my neovim config, and I've set up `aerospace` on my work Mac so I can try to use a tiling window manager on this device. I've also set up my workspace tools after forever, and I'm starting to feel a little productive. Company hustle culture does not help.

    I want to build a learning platform powered by deliberate practice and AI. To teach how to program from a practical perspective.

    I am also trying to kick off a podcast for folks in tech at Bangalore. I hope to start it in June.

  • by Bramhoven on 5/27/25, 6:56 AM

    I’m working on Proflect — a platform that combines goal-setting, journaling, and feedback to support intentional personal and professional growth. You can link daily reflections and feedback directly to the goals you’re working on, and track your progress over time.

    The idea is to bring more structure and insight to self-improvement without making it feel like a chore.

    I’d really appreciate any thoughts on the concept or the site itself: https://proflect.io — does it make sense? Anything unclear or missing?

  • by sanswork on 5/25/25, 8:53 PM

    I built https://startthelanding.com mostly for myself as I have needed it a lot over the past few years and always ended up building quick one offs. I'm now working on marketing it through a few different channels while at the same time starting work on my main project that I needed the landing pages for which is a fashion for tech/finance people site. I'm going to be doing a big social campaign for that one soon involving myself so I'm pretty excited but also quite scared since I'm not really the post myself on socials type.
  • by Jean-Philipe on 5/26/25, 12:47 PM

    I'm working on a free meetup platform: https://github.com/strathausen/laundryroom.social

    because I got frustrated with meetup.com

  • by lukehollis on 5/25/25, 9:58 PM

    Text to 3d simulation on a map. It does historical or fictitious events pretty well if it's interesting: https://mused.com/map/

    I was working on world models / generative environments but without the training data available as an independent researcher, ended up focusing on building with existing geospatial data.

    The same architecture of the '24 Genie paper's dynamics model is instead trained on historical data for risk analysis and creating a heatmap in the 2d map. I'll try to adapt this for a more generalizable urban mobility model as well.

  • by sandeepkd on 5/26/25, 5:28 PM

    Working on building a platform that allows the hosting for the front end of the website, and use the dynamic backend similar to Firebase. Only difference may be the drop in authentication functionality without any hassle going all way up to support enterprise level IDP.

    The authentication space becomes too complex above a certain company size, the concepts like admin user, service user, are not always supported as first class concepts. In a nut shell, just trying to solve the problems that I have personally come across the last decade and more in the industry in authentication space

  • by conditionnumber on 5/25/25, 8:52 PM

    Papers with code for quantitative finance. Still just thinking about it. Replicating research is a great way to learn a field.

    >90% of the work to replicate academic research in quant finance is data collection and cleaning. Academics have WRDS, Bloomberg, and research assistants. Others need to find cheap vendors of acceptable quality. Write scripts to fetch and clean. Actual algorithms and analysis (the fun part) are a tiny fraction of the total effort.

    Project objective is "good enough" data collection & cleaning for daily frequency equities, futures, and FX. In that order. Annual data budget target < USD 500. Cheaper is better.

  • by cryptoz on 5/25/25, 8:53 PM

    The plan: You are a PM and Engineer - and so is the AI. You both write tickets and you both complete them to iterate on your code.

    https://codeplusequalsai.com

    You can build webapps very quickly, especially AI-enabled ones, and deploy them on a subdomain. Other users can sign up and use your webapp, and any tokens they use will be billed to them and you will get a large cut (80%) of the margin earned on the tokens billed - as I bill 2x OpenAI API token costs to create this margin.

    So ideally you can validate your idea by rapidly building a prototype and evening earning revenue to boot.

  • by austin-cheney on 5/25/25, 7:58 PM

    A PTY in JavaScript. XTERM.js is not pure JavaScript as it builds binaries to do this.
  • by yboris on 5/26/25, 3:09 PM

    Adding a Portuguese translation for https://www.utilitarianism.net/ and a French one is on the way too!

    https://github.com/whyboris/utilitarianism.net

    Built this website with Hugo and it's been one of my favorite (and best) projects of my life. Has PDF generation of articles and a static low-bandwidth instant search of the whole website. Very happy with the build system too (using just)

  • by brainwipe on 5/26/25, 3:40 PM

    Two things! - Videogame, you live inside a mechanical ladybird called a Clomper, which you control by making pipes to power machines with steam. https://store.steampowered.com/app/2349380/Clomper/

    - Building plastic self organising maps (Lang 2002) using Python CUDA build to parallelise the more expensive bits. Also fancy building the directed graph half in Unity 3D.

    - Also doing some data engineering pre-training and AIIA at work but no deets, sadly.

  • by ChrisMarshallNY on 5/25/25, 11:08 PM

    Well, I did a rewrite of this app (RiVal.T, an iOS timer)[0], and I'm working on a new release that includes a Watch app (acting as a remote control). Getting the Watch and phone talking reliably is a challenge, but I seem to be stumbling towards success (eventually).

    I have a couple of other apps that I have plans for, as well. If I get sick of playing traffic cop, with the phone app, I may take a break, and work on them.

    [0] https://riftvalleysoftware.com/work/ios-apps/rival-t/

  • by kazinator on 5/26/25, 6:20 PM

    FOSS-side-project-wise, working on next release of the TXR Language.

    It is just now a matter of, cut it now, or include yet one more thing?

    I started writing the RELNOTES two weekends ago, yet more stuff started going in.

    In the semantic versioning scheme selected for this project, 300 means that it is literally the 300th public release.

    There are over 140 new commits and 299 was all the way back in February.

    It's going to be very exciting (for the small number of people that know about this project, now nearing its 16th anniversary).

    https://nongnu.org/txr

  • by cookboox on 5/26/25, 1:07 AM

    I recently quit my job and build Cookboox (https://apps.apple.com/us/app/cookboox/id6743146885), an iOS app that lets you scan cooking recipes (from photos, screenshots, or physical cookbooks) and turns them into an interactive, step-by-step guide. The idea is to make your existing recipes easier to use in the kitchen. Instead of just a static image or page, you get a hands-free friendly, guided experience. Would love to hear your thoughts and feedback!
  • by weakfish on 5/25/25, 10:22 PM

    https://github.com/weakphish/yapper

    A block-based TUI note/task application using the Charm tools. I know there’s a billion note apps out there, but none fit my mental model, so just hacking my own.

    Goal is to have a system of dumping info in and letting organization naturally rise from tagging.

    Each tag has its own page that aggregates all blocks tagged with it, and can have a custom page layout depending on the defined “type” of the tag I.e. a person, project, etc.

    Tasks are also first class citizens and can be aggregated with dependencies on other tasks.

  • by nico on 5/25/25, 8:35 PM

    A CLI ai-powered job matcher and application tracker for finding tech/startups roles. Open source: https://github.com/nicobrenner/commandjobs

    Also having fun one-shoting or few-shoting, little games and interactives:

    * https://openjam.ai/stupid_coral_852/yj34um3hkq

    * https://openjam.ai/lonely_ant_702/v3nyt4if54

  • by yeutterg on 5/26/25, 12:58 AM

    https://liverestful.com - We're releasing a smart bedside lamp that reduces circadian input at night and wakes you up to light in the morning. This took about 3 years of active development; and we're building out an ecosystem of connected circadian lights for the home (think desk lamp, reading lights, etc.).

    This builds on the back of our popular Bedtime Bulb light bulb - much-improved v2 coming soon: https://get.bedtimebulb.com

  • by bishopsmother on 5/25/25, 9:09 PM

    Expanding the functionality of Wabbit S2[0], e.g. Sesame AI[1], and improving existing features based on feedback over the last few weeks of Mabel's testing.

    [0] https://blog.walledgarden.ai/2025-05-20/wabbit-s2-welcome-to...

    [1] https://www.sesame.com/research/crossing_the_uncanny_valley_...

  • by Bismayy073 on 5/29/25, 8:13 AM

    Built an AI interview assistant that processes speech → context → personalized responses in under 2 seconds. Small overlay window that's invisible to interviewers during video calls.

    The interesting challenge was balancing response quality vs speed while handling real-time audio processing from browser tabs.

    Use case is interview help, but could work for other real-time conversation assistance.

    Feedback welcome for interviewbee.ai

  • by thingsilearned on 5/26/25, 12:55 AM

    I recently released suggestion-mode functionality for prosemirror

    https://github.com/davefowler/prosemirror-suggestion-mode

    and now I'm building it into my reading and note taking app for a better interaction of AI giving assisted edits, most similar to the Patchwork project from ink and switch https://www.inkandswitch.com/patchwork/notebook/07/

  • by leansensei on 5/25/25, 10:00 PM

    I've been working on a kinda-sequel to my first technical book, Northwind Elixir Traders. This one (Phoenix Product Codex) is about developing and deploying a production-grade REST API with Elixir and Phoenix.
  • by hxii on 5/26/25, 4:21 PM

    I finally got my yaml task runner to a workable state.

    Getting the parts that I absolutely HAD to implement while not descending into feature-creep hell (driven by my own curiosity) was challenging.

    Then again so were the self-debates about the syntax and documentation.

    Maybe one day I’ll learn Go or something, but until then - Boku is my yaml-based task runner written in Python.

    https://git.sr.ht/~hxii/boku/tree/main/item/README.md

  • by DeonRob on 5/26/25, 7:26 PM

    *Sashi: AI-Powered Workflows from Your Own Codebase* https://www.usesashi.com/

    Sashi is an open-source workflow automation system that lets you turn real backend functions into reusable, shareable workflows—created with AI, validated by code, and executed from a secure dashboard.

    *What makes Sashi different?*

    - *Real Code, Not Just Integrations:* Register your actual backend functions (Node/TypeScript) with a lightweight library. Sashi uses Zod for type-safe validation and auto-generates UIs based on your return types.

    - *AI-Generated Workflows:* Describe what you want in plain English—Sashi’s AI chat interface builds and validates multi-step workflows, connecting your registered functions in powerful sequences.

    - *No Admin Panels to Build:* Sashi provides a secure, auto-generated dashboard for your team to run, manage, and visualize workflows. No more custom admin UIs or glue code.

    - *Secure by Design:* All execution happens server-side, with scoped API tokens and session management. You control your stack and infra—no vendor lock-in.

    - *For All Teams:* Support, product, DevOps, and engineering can automate internal tasks, trigger backend logic, and collaborate—without waiting on developer cycles.

    *How it works:*

    1. *Register Functions:* Use the Sashi library to expose backend functions with type-safe schemas.

    2. *Create Workflows:* Use the chat or flow builder to compose workflows—AI helps connect steps and validate data flow.

    3. *Execute & Visualize:* Run workflows from a central dashboard, see results in real time, and auto-generate UIs (tables, cards, graphs, etc.) based on your data.

    *Example Use Cases:*

    - Support: “Refund a user” or “Reset password” via dashboard, no SQL or custom tools.

    - Product: “Send weekly usage report to Slack” or “Find users who abandoned signup.”

    - DevOps: “Spin up preview envs” or “Rotate API keys” as repeatable, auditable workflows.

    *Try it or learn more:* https://www.usesashi.com/

  • by NoTranslationL on 5/25/25, 8:30 PM

    A few things:

    Reflect - an app to track anything and analyze your data, including a feature to run self-guided experiments [0]

    Later - an app to schedule non-urgent tasks and ideas, with an SRS-like scheduler to punt items [1]

    [0] https://apps.apple.com/us/app/reflect-track-anything/id64638...

    [1] https://apps.apple.com/us/app/later-set-intentions/id6742691...

  • by singh273 on 5/28/25, 11:41 PM

    Working on something to penetrate the hiring and recruitment market(141 billion pounds just in UK). There's lot issues I see and data on current skills gap is not very good. Given use of AI tools junior roles are seem to vanishing soon enough. So looking to work on something meaningful. Also want to create health tracking specified just for kettlebells with a community element built in.
  • by estsauver on 5/26/25, 8:03 AM

    I shipped a tool that uses logprobs to generate pretty detailed estimates about how long tasks are going to take (i.e., give a new product manager/business person/sales person this tool and then they'll have reasonable estimates for how long various tasks will take.) If anyone wants to try it at universalestimator.com, it's free with code "TYHN".

    I'm also making a picture book generator for my kids. I want to be from some pictures, a description of a story, and will then pop out a ready-to-print picture book for them.

  • by sage76 on 5/25/25, 11:11 PM

    Working through PRML and creating a full solution set, albeit very slowly.

    https://github.com/abhimanyu-jain/PRML_Solutions

  • by leslielurker on 5/25/25, 9:39 PM

    I’m working on https://lurkhub.com a web app that lets me store my bookmarks, articles to read later and rss feeds in a private GitHub repo.
  • by wonger_ on 5/26/25, 12:09 PM

    Training to run a half-marathon. I recently ran an hour for the first time in my life (~5 miles). I enjoy the challenge of long-distance running, and the mental clarity, and doing it all barefoot.
  • by jkoff on 5/25/25, 9:58 PM

    Link: https://infinitepod.app/

    I'm building Infinite Pod, a web app that generates language learning podcasts tuned to your individual learning goals and level.

    It's based on the principle of language acquisition through comprehensible input, as described here: https://www.youtube.com/watch?v=NiTsduRreug

    It's still a bit rough, but feels magical in my own testing so I wanted to make it available to others.

  • by radsj on 5/26/25, 4:37 AM

    https://avrhut.com/web-clipper-to-apple-notes.html

    Working on solving my own pain point, around saving web pages to apple notes. While there are workarounds like singlefile and apple shortcuts, it ends up being a multi-step process, and limited search functionality within apple notes.

    Also, experimenting with using texting to manage family calendars: https://textconcierge.ai/

  • by rubyfan on 5/26/25, 3:22 AM

    Insurance policy administration system using Rails 8. HexaPDF based document generation. JSONLogic based rating with vanilla js WebComponent based embedded sales SDK. Think Stripe for Insurance sales.
  • by vldszn on 5/26/25, 9:01 AM

    I’m building a free, open-source invoice generator with live PDF preview — all browser-based, no sign-in needed.

    It supports multiple languages, currencies, European VAT deductions, and more.

    Originally made it for myself, so it’s a bit of a personal tool — but I hope others find it useful too :)

    https://easyinvoicepdf.com/en/app https://github.com/VladSez/easy-invoice-pdf

  • by steida on 5/25/25, 11:21 PM

    I work on the local-first that scales.

    https://www.evolu.dev/blog/scaling-local-first-software

  • by fullstackchris on 5/26/25, 10:31 AM

    CodeVideo - https://github.com/codevideo

    Basically, event sourcing for the IDE - build entire software lessons and course videos without actually recording anything.

    You can get up and running pretty quickly at our studio https://studio.codevideo.io

    Or locally with the CLI tool: https://github.com/codevideo/codevideo-cli

  • by jsemrau on 5/25/25, 10:08 PM

    I still haven't found what an actual working product in AI Agents could be and write about my journey into capabilities, frameworks, and restrictions here: https://jdsemrau.substack.com/

    Initially I thought there is a use-case in finance, but the barriers of entry are incredibly small and the value add is not that large.

    Currently, there seems to be a lot of traction in code generation (Cursor, Lovable, et al), but I have not seen that work on a useable code base/workflow.

  • by kingo55 on 5/25/25, 10:43 PM

    I'm trying out vibe coding a bit on my olive oil index site — building a full website with 11ty, tailwind and LLMs. The LLMs also serve as a data pipeline to watch and update content as new information is published online: https://www.extravirginvault.com/

    I've always enjoyed the farm-to-table concept, but I find it really hard to identify trustworthy companies. Wine has been done to death, but I feel extra virgin olive oil is currently underserved.

  • by cosbgn on 5/27/25, 8:18 AM

    I'm building https://rispose.com which is a tool to embed chatgpt on any site. It's super cheap and it's growing nicely.

    Rispose is the first tool I build which isn't tightly coupled on another provider.

    I can easily swap OpenAI for another provider or even host my AI. This IMO is something really interesting and something before was relay hard to achieve (most tools are built on top of bigger platforms).

  • by huksley on 5/26/25, 8:12 AM

    I am implementing native support for deploying Python apps in DollarDeploy.

    DollarDeploy is like Coolify and dokploy but with better UI, no docker containers and fast deploys for full stack apps, NextJS, react

  • by upmostly on 5/26/25, 1:09 PM

    We've been working on a vibe-coding platform called Hypership.

    https://hypership.dev

    What's different with Hypership is that your apps get user auth, page view analytics, event tracking, logging, and an admin dashboard all set up and ready to go out of the box.

    It's also a much nicer platform for devs because we host VS Code in the cloud for you as you're vibe coding. That means you can manually edit the code as you go.

    It's basically what web development should be in 2025.

  • by dzink on 5/26/25, 3:54 AM

    I’m a mom. I built https://www.DreamList.com a few years ago because all of the wishlist companies were indexing your baby registry stuff by your name on Google. It has been growing steadily for years and it’s going well, so I never needed to raise money for it, but I noticed that a number of the Angel Investors in my network were former Traders. So I started looking into the market as well. A lot of even paid data sources were deliberately delayed - putting retail investors behind on any trade. I started digging for more reliable real time data, started generating my own candles from trades and doing my own indicators and doing my own trading and now that’s growing too. (not an outside thing, just for personal use). You wouldn’t believe the number of obstacles that get in the way if you want to do anything with finance or trading. Not touching crypto with a 10 ft pole - this is bread and butter stocks and you will still hit 100 gotchas. The more obstacles that show up, the thinner the air and the more money end up on the other side of overcoming each obstacle.
  • by quinto_quarto on 5/26/25, 6:30 PM

    been building a free, simple save-later and notes app: https://eyeball.wtf/

    you can do all the usual stuff (save any link with one click, tag your stuff, add notes to each link). i'm not sure what to do next with it, open to suggestions.

    i also made a IMDB of the creator economy, a free database of indies making cool things: https://indieworld.io/

  • by Tsarp on 5/26/25, 9:43 AM

    Building a small framework for securely connecting desktop apps/clis directly to your existing browser using Native Messaging i.e no headless browsers or cloud sandboxes/proxies involved.

    Inspired by secure password managers like Bitwarden, goal is to reduce detectability, avoid CAPTCHAs, and mitigate common fingerprinting pitfalls.

    The idea is simple: leverage the trust your browser already has.

    https://github.com/srv1n/rzn-browser-native

  • by f3b5 on 5/26/25, 11:21 AM

    An intent-based Linkedin B2B lead finding tool that evaluates tens of thousands of comments in small thematic niches to find prospects that have a certain problem, and are actively looking for a solution. I just finished building the backend side of the tool, and released it to a group of early customers to find out how well it performs. It's a really fun engineering problem to cut through tons of spam, bullshit, and hustle porn, and find the few gold nuggets in the comment sections.
  • by hummusisdata on 5/26/25, 8:17 AM

    I am now working on forming a new data strategy framework. I think that one of the biggest issues we are seeing out there is the rush to GenAI and create automation. However, in reality, people tend to ignore the data that is supposed to be used.

    So I started my blog Cooking Data, and slowly, using Vibe Coding, I am building tools to translate the philosophical conversation into actionable tools. I am always happy to learn and discover how the team handles the data strategy and answers the business goals with it

  • by kanodiaashu on 5/26/25, 6:13 AM

    I’m working on something inspired by Cursor and Obsidian — but for research, reading and note-taking.

    I’ve not been satisfied with how AI is bolted on after the fact — reading in one place, notes in another, and AI as a separate assistant. So I’m combining them.

    It works over EPUBs, PDFs, and HTML — you bring your own sources (BYOS), and it turns them into a AI scaffolded, structured, hierarchical reading experience.

    Already using it for both reading and deep research style deep dives, and its already way better than my otherwise broken workflow!

  • by sircastor on 5/26/25, 2:32 AM

    Writing a silly little iOS app with ChatGPT. I’ve done a little iOS dev, but not enough to be proficient. As an experiment I wanted to see how far I could get just asking the AI to write a thing and make changes.

    It’s been a very instructive process and it’s shown me where the strengths and weaknesses are.

    As an aside on that. I don’t think AI is going to replace Developers. I do think it’s going to be a rough couple of years while businesses try everything they can to make that happen. And that’ll probably be disastrous for everything.

  • by tha00 on 5/25/25, 8:29 PM

    I'm working on a new secondary dominant exercise for my Jazz pratice app: https://jazzln.vercel.app/
  • by crabsand on 5/25/25, 10:40 PM

    I built an RSS to Bluesky poster an hour ago.

    In the long run, writing a gui for https://github.com/iesahin/xvc and Git.

  • by chrisvalleybay on 5/26/25, 6:29 AM

    I'm building a cross-over between Linear and Obsidian. Think Linear for personal use but with full VIM-support in the editor. Every action in the application can be bound to a key.

    I still don't have a landing page, but if you are curious you can test it out here: https://lindon.app

    If you do test it out you can see all keyboard shortcuts with 'Shift+?' and you'll have to enable VIM-support in the settings (Cmd + K to open).

  • by r0x0r007 on 5/26/25, 10:03 AM

    Trying to leverage LLMs for creating custom lessons(from prompts)that use stuff like dev-typing simulation(instead of just copy/paste), narration, theoretical concepts and quizzes. Basic idea is to use 'AI'(yeah I know...) to increase our coding knowledge and curiosity about other languages and overall fingers memory, instead of just copy/pasting from LLMs.

    https://thecoderssage.com/

  • by scottishbee on 5/26/25, 9:17 PM

    Build user-facing prototypes with your real data.

    Every startup/company I work for I've had to jury rig ways to get new product ideas in front of users. Google sheets, Grafana boards, Chartio (RIP), etc all to go "SQL query" -> "user-accessible website". For some reason Retool doesn't have a "make externally available to these people".

    So I'm playing around with how to build a generic interface between db and user access panel.

  • by yakshaving_jgt on 5/25/25, 11:10 PM

    A HTML validator for websites and web applications. It’s just not scalable having to do this manually, and having valid HTML is still important. Wrong HTML can cause bugs, and can harm accessibility. This is becoming more important now in Europe with new accessibility laws coming into force next month.

    https://jezenthomas.com/2025/05/dont-skip-html-validation/

  • by greenie_beans on 5/27/25, 11:35 AM

    https://bookhead.net the missing piece of an independent bookstore's tech stack
  • by aniket_920 on 5/26/25, 4:03 AM

    Social voting site Where people will discuss and vote about social issues, which could be general, regional, environmental, politics, science, IT, etc.

    Here every users votes are weighted, means it's not necessary that every user votes count equal to one, may be it will be less than one or in negative also.

    Algorithms is very complex and I'm figuring it out.

    Currently at ideation stage and soon start the development.

    I'm working on this idea to make sure my platform present a clear view about the topics from general public's.

  • by coro_1 on 5/25/25, 10:23 PM

    A web UI that enables collecting of the dollar amount of the local major utility providers monthly bills (Before engineering I worked in marketing research). I am concerned about the data collecting part, not because the local consumers don't seem okay too provide it (there's outrage) but because I'm not working and don't feel confident in publishing anything live. State government only publishes the annual yearly rates. There's no transparency on the rest.
  • by Yabood on 5/26/25, 1:03 PM

    An employee advocacy platform that helps companies amplify their brand reach and thought leadership through their employees’ social networks. It integrates with tools like Slack and Microsoft Teams, allowing marketing teams to easily share curated content that employees can like, comment on, or reshare without needing to leave their workspace or log into LinkedIn.

    https://www.socialweaver.com

  • by woutr_be on 5/26/25, 4:15 AM

    I recently completed https://askannie.it.com, at first it was just a tool that I used myself after constantly copy/pasting YouTube transcripts into ChatGPT. A couple of friends liked it, so ended up building an app around it.

    For a next project I'm exploring building something that let's you quickly embed charts. Similar to what Google Charts was, but I still haven't found a good alternative.

  • by Havoc on 5/25/25, 10:47 PM

    Building a budget home server. Ebay style. There is a lot of gear out there that isn't suitable for gaming anymore but still very sound as home server.

    Software wise doing proxmox + nixos LXC

  • by yoz-y on 5/26/25, 6:30 AM

    A workout app that uses human readable/writable text file as input. I’m on the 4th iteration.

    It started as a bunch of spiral bound notebooks. I made an iOS prototype but realised it’s so niche that it would never get approved. Made a PWA that I’m currently using for about a year. Now I’m building a second version which I finally plan to share.

    The reason I’m making it is that I realized that any other style (mainly, tabular input, dropdown boxes, input fields) just doesn’t fit my routine.

  • by getgalaxy on 5/26/25, 2:42 PM

    The Cursor for SQL - getgalaxy.io

    We think theres a huge gap in tooling for devs associated with writing SQL. We've reimagined the SQL editor to make it modern, fast, beautiful, and have a AI copilot that actually works. Importantly, we've also added sharing and collaboration in a Postman / GDrive nature so you never have to share queries with your team via slack or notion again.

    Check us out and ping me on LI. getgalaxy.io linkedin.com/in/garrettawolfe

  • by nikkwong on 5/26/25, 1:04 AM

    https://blendful.com — A template generator (currently for Tailwind). I've been frustrated by marketing templates and their unitary visual style which becomes implemented all over the web. I think people want high quality templates and assets that they can theme themselves, without diving into the nitty gritty of padding, line-height, et al. Super early, launched on Reddit and have a few users.
  • by recsv-heredoc on 5/25/25, 10:04 PM

    For the past almost 3 years - full-stack vertically integrated business AI systems. We got a nearly perfectly timed start on this.

    We’re solving the problem of “How can agentic AI interface with legacy and existing business systems.” - if you’ve got a boring job and are tired of filling out forms in business software or swapping between 10 different systems, convince management to let us come and have AI do it for you.

    https://mindfront.ai

  • by ChicagoDave on 5/25/25, 9:51 PM

    I have several projects in the works:

    - mach9poker.com: incorporated startup developing a poker tournament training app for novices and unprofitable players. Looking for UX/product designer co-founder.

    - policyimpact.org: A journalism site for highly vetted articles responding to actions of the current U.S. administration and other import political vectors.

    - sharpee: a new interactive fiction platform built in Typescript

    - bsky.poker: root domain for poker community to have nice handles on BlueSky

    Happy if anyone wants to pitch into any of these projects.

  • by zoidb on 5/26/25, 9:03 AM

    For fun over the weekend I started an ambitious project of creating a "pocket size" space trading game, inspired by a classic BBS door game called Trade Wars that I really loved as a kid. I'm keeping a development log to keep myself motivated and wrote the first post about it here https://jarv.org/posts/stardewar-v01/.
  • by Tsarp on 5/26/25, 9:51 AM

    A local dictation app for Mac to use when coding. I spend a lot of time talking to Cursor, Chatgpt and needed to get rust and swift library names correctly.

    Spent a lot of time on low level hardware libs to roll out my own version of VAD, grammar correction and stitching segments.

    Faster than the hosted dictations tools thought it runs locally and a lot more control in terms of custom vocabulary.

    https://carelesswhisper.app

  • by bitbasher on 5/27/25, 10:23 PM

    My current side project is a game development market analysis and research platform with built in marketing channels (youtubers, streamers complete with contact data, etc).

    For example, you can research the best genres for indies by copies sold, numbers of released games/saturation, etc. You can also find youtubers that have streamed similar games/genres and get their contact info.

  • by dhuan_ on 5/25/25, 10:10 PM

    I've been working on mock: https://dhuan.github.io/mock/

    the process of creating APIs for testing and automation should be as easy possible. the tools that exist nowadays aren't good enough, they require you to use their programming language of choice or complex procedures for a task that should be simple. I built mock to try to solve that and still continue to maintain it.

  • by ata_aman on 5/25/25, 9:33 PM

    Dora: https://dorafiles.com

    It's a file explorer where it embeds your local file structure so you can use natural language to search your file system.

    Started off as a local inference/vector-db only project last year and now also using cloud inference/vector-dbs for faster processing.

    You can also use "agent-mode" to organize your files/folders, create items, move, copy and save content to disk directly from chat.

  • by rjprins on 5/26/25, 6:58 AM

    A REST framework for FastAPI and SQLAlchemy, creatively called "fastapi-alchemy". A bit on the ambitious side, but I had the opportunity to open-source work I did for an employer. It is running in production, but it needs extensive documentation and testing still before I'll package it and offer it to PYPI.

    https://github.com/rjprins/fastapi-alchemy

  • by Two_hands on 5/26/25, 7:39 AM

    EyesOff a privacy focused macOS app (other platform support coming soon) - https://www.eyesoff.app

    Built using python the app alerts you to when someone is looking at your screen, using locally running deep learning models + your webcam.

    I developed the app when I felt uncomfortable with working in public spaces, I wanted EyesOff to give an extra barrier of security to shoulder surfing scenarios

  • by tmilard on 5/25/25, 10:25 PM

    Working on a 3D-Editor that transforms photos of a place into an FPS game. - Editor : https://www.youtube.com/watch?v=LEsqp93sq3w - FPS Example : https://free-visit.net/fr/demo01

    This has been my WE project for a long time. But it's only working really now.

  • by csomar on 5/26/25, 2:33 AM

    https://codeinput.com

    Building Tools for working with Git and managing your code base. Initially started with an online merge conflict tool integrated with GitHub. Now working on a Code Owners CLI https://github.com/CodeInputCorp/cli to improve on the current Code Owners functionalities on GitHub.

  • by drchiu on 5/26/25, 3:24 AM

    I have been working on Broadcast (https://sendbroadcast.net).

    It’s an email marketing tool, self-hosted, for use with existing ESPs like Postmark, Mailgun, Amazon SES, etc.

    Been working on this since September 2024, and have been consistently hacking away at it weekly: https://sendbroadcast.net/changelog.

  • by egonschiele on 5/25/25, 10:48 PM

    http://github.com/egonSchiele/typestache - Mustache with static typing
  • by rgyams on 5/25/25, 8:32 PM

    I'm working on MyPhotosGallery, an application that allows people to create photo galleries from their Google Photos. I've made it easy to onboard users and also priced it in Ghana Cedis so that it's cheaper for anyone. Currently there are templates for birthday, graduation, wedding and general photoshoot. https://myphotosgallery.com/
  • by fathermarz on 5/25/25, 11:53 PM

    I have started to lean into my love for education and security and created Phended for non-technical users. I just did a rebranding, added an LLM chatbot, and a learning management system which I am going to be working on courses for the next little bit and would am looking for contributors to course content.

    Would love some feedback overall and suggestions: https://phended.com

  • by madduci on 5/26/25, 5:31 AM

    I work a project that let doctors and laboratory send notifications reports in FHIR format to the Health Offices located across Germany, based on their address.

    Recently we have released everything as open source, even the code for setting a local development Kubernetes cluster using OpenTofu

    https://github.com/gematik/DEMIS-Development-Cluster

  • by antoferra on 5/26/25, 3:21 PM

    An iOS app that removes reels from Instagram, shorts from YouTube, and any other distracting features from social media. Also has a time budget feature to prevent you from doom scrolling.

    Download link: https://apps.apple.com/it/app/timecap-limit-screen-time/id67...

  • by elananandhan on 5/29/25, 5:02 AM

    A newsletter "Startup Marketing', where I break down early-stage marketing strategies of successful startups. So far, I’ve published case studies for 8 successful SaaS products.

    https://newsletter.saastrek.co/

  • by yuvadam on 5/26/25, 8:23 AM

    Been building Namekit [1] — a simple tool that uses AI + a small proprietary model to generate domain name ideas and surface only the ones that are immediately available. I got tired of bloated name generators with useless suggestions, so I built something fast, clean, and actually useful — mostly for myself, but now for others too.

    [1] https://namekit.app

  • by kemyd on 5/25/25, 9:36 PM

    https://shuffle.dev

    For the last few weeks, we have been working on catching up on features for vibe coders (prompt -> project), but now we are back to our strengths (visual editor and new beautiful UI libraries for Tailwind CSS, Bootstrap, and more).

    We realized there are just too many apps for vibe coders, and it would be better to work on something unique that we are really good at!

  • by justacoder12 on 5/26/25, 5:09 PM

    I have been working on https://carzenie.com to improve online car buying experience. Buying a car is complicated because it has more dimension to consider than other items (i.e. body, engine, fuel, etc.) LLM is a great fit to help translating car buyer's requirements into car's spec and returns the results.
  • by simlevesque on 5/25/25, 11:40 PM

    Free worldwide reverse and forward geoloc. Based on DuckDB + Parquet files. I just got access to a big server for free by some kind folks to process the planet.osm data.

    The idea is that instead of running Nominatim which is costly you can just query Parquet files over the network.

    Instead of a cluster of PostgreSQL servers all I need is a bunch of static hosting holding the dataset that's around 1Tb.

    Send me an email if this interest you, it's in my profile.

  • by adityapurwa on 5/25/25, 10:57 PM

    I am currently working on AnythingSticker - https://apps.apple.com/us/app/anything-sticker/id6745157608

    An app that can turn anything into adorable stickers. In my region, people uses WhatsApp a lot, and there's this ability to create custom stickers. So we uses a lot of stickers on a conversation.

  • by bonniesimon on 5/27/25, 1:13 PM

    I'm building a personal CRM tool that I use to store my network. I have a bad habit of not checking up on people. Even close friends. That's why I'm building this. The goal is to have a software where I can input people and then set reminders to catch up with them. It's kind of like a relationship management tool.

    Existing alternatives: Clay, Dex.

  • by bwb on 5/26/25, 1:53 PM

    Working to make a really sweet app to manage your to-be-read book pile, and bring it to life: https://building.shepherd.com/roadmap/launch-our-tbr-app-to-...

    Excited about it, as I've been wanting something like this for a while :)

  • by Hyperized on 5/26/25, 5:36 AM

    After installing access points we were looking for a quick and simple way in a standard (mobile) browser to continuously check connectivity.

    https://latencychecker.com does just that, because opening a ping prompt on a mobile device isn’t a thing without installing apps.

    And it gave us a good excuse to stretch the legs and dabble in a little frontend development.

  • by userundefined on 5/26/25, 2:42 AM

    I'm still working on and off on my https://dawnofthe.dad/crossword, albeit most of the guts (solver backing the crossword builder) have been stable and lately most of the work has been on the front-end. On that note, I've been meaning to rewrite the UX component to be HTML element based, rather than canvas.
  • by andoando on 5/25/25, 8:59 PM

    I've been working on a drawing/animation library/language based on patterns and abstractions.

    On one hand the idea seems so simple and intuitive (Define patterns (like 3 red blocks to the right), combine patterns ( 5 up * 3 red right), use patterns inside patterns (each block is a square), but implentation wise I keep running into so many intracies and I want it to be perfect so it's been kind of tough and slow.

  • by hbroadbent on 5/26/25, 7:55 AM

    I'm still building AttendList, a Google Meet attendance tracking extension (https://attendlist.com).

    It's starting to pick up! Which is cool — a few new users are trickling in each week. I think it's about time I invest more time in marketing now though (which is probably what I should be doing now instead of posting on HN!)

  • by emadm on 5/25/25, 10:48 PM

    I’m building a system for free universal ai access for the important things in life - education, health, government etc

    Stuff that should be open source, open data

    Made state of the art datasets, health models, research systems & agents so far @ www.ii.inc but the plan is ai first open source full stack systems for every regulated sector

    Have a distributed ledger announcing soon to tie it all together and create a flywheel so more folk can get access to ai

  • by rasulkireev on 5/26/25, 3:26 PM

    I'm still working on Marketing Agents (marketingagents.net) in my free time. Trying to make an open source, self hostable app that will allow founders scale their marketing efforts.

    Thinking about future monetization efforts and found myself liking Posthog approach for that.

    Host for large companies looking to automate marketing, yet leaving it free (self hostable) for smaller companies that can't pay.

  • by 35mm on 5/25/25, 8:19 PM

    Email newsletter tracking the latest VC rounds, built in Rust: https://gtmintel.com
  • by darkhorse13 on 5/26/25, 12:03 PM

    https://forms.md, open-source Typeform alternative with a one-time pricing.
  • by ubavic on 5/25/25, 10:03 PM

    I am reverse-engineering a PKCS#11 module for Gemalto smart cards and re-implementing it in Zig (https://github.com/ubavic/srb-id-pkcs11). The original module is published only for Windows, and my implementation targets *nix platforms. This is my first project in Zig, and I am very happy with the language.
  • by akkartik on 5/25/25, 8:14 PM

    A programming environment where boxes and arrows and hyperlinks are pervasively available to source code.

    https://akkartik.name/post/2025-03-08-devlog

    https://merveilles.town/@akkartik/114547652849162554

  • by cckolon on 5/25/25, 11:39 PM

    https://ewatchbill.com - a fair schedule generator that uses simulated annealing to minimize a ‘unfairness’ heuristic. I wrote it for my friends in the Navy who have to write duty bills every month.

    https://bearingsonly.net - a submarine combat game in the browser.

  • by agcat on 5/26/25, 6:22 PM

    Nowadays, I am working on learning robotics from a software engineer's lens on weekends. I got a yahboom one hand robot with Nvidia jetson nano orin gpu. So far i have setup the robot and next i am going to run basic apps on it. I am also going to document video and blog the journey. If someone else is also playing with robots would love to learn
  • by 1270018080 on 5/25/25, 8:54 PM

    I have a ton of spare time and wish I could write some kind of side project, but I simply have no good ideas. I already have everything I need.
  • by guywithahat on 5/26/25, 5:57 PM

    I (was) working on a highly parallelized game using go and ebiten, but upon realizing I wasn't going to achieve the CPU utilization I wanted, I wrote an article about it instead. https://thomashansen.xyz/blog/ebiten-and-go.html
  • by turbotim on 5/25/25, 10:51 PM

    I’m working on https://spoken.me language practice for intermediate and advanced learners of English and Spanish. Hoping to launch a new flashcard experience in the next few days and a new role playing mode in the coming weeks. We’re small fry at the moment but it beats working at FAANG (except for the money)
  • by simmschi on 5/27/25, 12:54 PM

    I'm working on a cycling app that analyzes your Strava data and matches your activities to the OSM street grid. You get cool statistics which paths in your city you've already taken. The goal is to make your commute more fun :)

    https://cyclonauts.net

  • by cloud8421 on 5/26/25, 9:44 AM

    I’m still working on my physical music management application.

    It integrates with MusicBrainz and Last.fm, so that I can easily add records, scrobble them, and search/track stats.

    I want to figure out how to track availability for records I want to buy, which would involve interacting with marketplaces.

    Using Elixir, SQLite and Phoenix LiveView, which is what I know best and lets me focus on UX and UI.

  • by c0nstantine on 5/26/25, 6:21 PM

    Working on trre - extension of regex for text editing. I'm redesigning the underlying engine to operate on deterministic automata (transducers) for most expressions. Theoretically, it should outperform AWK in complex text-processing tasks.

    https://github.com/c0stya/trre

  • by thom on 5/25/25, 9:48 PM

    I am creating a heavily LLM-oriented distribution of Emacs (with a lot of the heavy lifting done by Karthink's gptel). This is primarily me rebooting my .emacs.d for the LLM age, but I've come to think that Emacs is a far, far more interesting place than VSCode as the basis for an AI coding environment: a text-first, eval-enabled, constantly self-improving IDE.
  • by felipesabino on 5/26/25, 8:31 AM

    I decided to try the AI train and develop something without actually writing any line of code.

    The result was very satisfying, https://rss.sabino.me - a rss new aggregator, with a summary to save some time on news that I do not want to read, but am mildly interested.

    I will not say the same about the code quality tough

  • by AaronKosovich on 5/26/25, 7:11 AM

    A platform for project prioritisation. Or at least I thought I was. It turns out that early users really want to use it as a sales tool to demonstrate ROI to their prospects, so I've been pivoting towards that. Check out https://www.reschematic.com if you're interested.
  • by pugworthy on 5/26/25, 2:28 AM

    Retirement and leaving behind a code base that’s not crappy. And someone mentored who can take over when I’m gone.

    And get my MG Midget back on the road.

  • by muconto107 on 5/27/25, 4:57 AM

    3 personal projects i uave been working on:

    Queue management AI agent where clients interact using Whatsapp/sms for appointment and reservation;

    School management system that integrates AI for reporting and teacher/student/staff task s assistance;

    A cloud based remote execution platform to run python(and other languages) scripts in a isolated virtual machine.

  • by immibis on 5/26/25, 9:15 AM

    > What are you working on?

    Nothing useful, like always. A non-computer project for the next week or so.

    > Any new ideas that you're thinking about?

    A few, but I'll never do them. It would be cool to offer free hosting services to projects (in lieu of places like Github and Fandom, and in the spirit of Miraheze) but in the current legal environment, feels like I'd be risking my life.

  • by AttentionBlock on 5/25/25, 10:44 PM

    Using LLM as a judge architecture to optimize multi-agent system prompts and configurations. For now it's achieved through LLM based consensus system that evaluates another LLM output, and based on its performance for a specific task, it's tune the architecture and the prompt e.g. refine the prompt, change the base model to a smaller or cheaper model, etc
  • by m5x5 on 5/26/25, 6:50 AM

    I'm building a browser dev tool for tailwind projects that provides you with an instant link from your browser to the code files with minimal per project setup. It also lets you save the changes directly to the code files.

    https://quick-edits-extension.vercel.app/

  • by DylanSp on 5/27/25, 9:14 AM

    I'm working on an app for easily conducting and organizing evals for LLM-powered applications. The core idea is making it easy for domain experts to review examples of interactions and tests with synthetic data, as well as tracking an application's evaluated performance over time as changes get made.
  • by fieg on 5/26/25, 7:25 AM

    I’m working on TalkCue.app: an simple, clean and intuitive tool to generate 1on1 questions for more useful and engaging 1on1s [1].

    This is a lightweight alternative to my earlier startup attempt Strateamic [2].

    [1]: https://talkcue.app

    [2]: https://strateamic.com

  • by pul on 5/26/25, 8:55 AM

    A set of free online internet infrastructure inspection tools. Think DNS, IP, ASN, WHOIS, email config, etc. It will replace my current main project nslookup.io when it'll launch.

    Beta is open at https://beta.nslookup.io (registration wall for now, but I'll remove it at launch).

  • by bob1029 on 5/25/25, 10:54 PM

    I'm currently beating around the bush on building a GitHub clone minus react, copilot, etc.

    There's no reason I should have my browser tabs crash when I view a pull request involving more than 100 files. The page should already have been generated on the server before I requested it. The information is available. All that remains are excuses and wasted CPU cycles.

  • by kaiherng on 5/25/25, 10:47 PM

    A cute medicine tracking app featuring an adorable mascot that gets increasingly annoying if you miss a dose (art & animations are original by me) - https://apps.apple.com/us/app/pill-buddy-meds-tracker/id6742...
  • by wcedmisten on 5/25/25, 9:15 PM

    I got tired of trying to pick a date spot with my girlfriend, so I made this website to randomly pick an restaurant/date activity for me based on OpenStreetMap data.

    I've also used the data corrections submitted by users to contribute over 3,000 edits back into OSM!

    https://surprisedatespot.com/

  • by Jotalea on 5/26/25, 3:12 PM

    Client-side Whatsapp chat analyzer, extremely easy to use, privacy friendly. I already made a Python implementation and am currently porting it to JavaScript, and will be available at: https://jotalea.com.ar/misc/wanalyzer
  • by chrischen on 5/26/25, 7:02 AM

    I've been working on a pickleball/badminton (or really any doubles type sport) event manager which integrates an Elo-style statistical rating system (OpenSkill) into the client-side UI. By simply logging the win/loss of every match that happens, it can real-time update and estimate skill ratings in only a few iterations of matches. Its use cases are to manage open play events even with a wide spread of levels, balance the teams of a match, and enforce fair turn-taking.

    I implemented a simple first-come-first-serve event RSVP system, and from the event RSVPS it will pull the players into an event management UI from which the organizer can place players into the available courts and arrange matches balanced by level automatically.

    The app does ratings calculations fully locally in the browser so it not only works offline but every new match is based on the last rounds' updated player ratings immediately. There is an option to submit matches to be persisted in my hosted service (pkuru.com) so player ratings are retained. The goal isn't to rank players like existing popular systems (DUPR, UTR, etc) but to do matchmaking within an organized session, or before a session.

    The web UI and session management app, which is tentatively named FairPlay, is open source on my github. The version I host at Pkuru.com is free to use as well, and currently used by the #1 club (by average skill) in central Tokyo, as well as the highest level club in Thailand.

    I don't plan to commercialize it as it is merely a side project but I can't promise the service will always be free to use due to potential operating costs at scale. However, the front-end UI including the session manager is and will be open source.

    There's no fundamental reason the system cannot be easily adapted to other sports such as volleyball, soccer/football, or even a 100-person race since the rating system was designed specifically for team based competitions. It can do everything from ranking players in game like PUBG (100 teams of 1-4 players), to 5v4 futsal (asymmetric teams), to classic 1v1 duels as well.

    If any clubs or even businesses are interested in using it to manage open play or rec play sessions where people can just drop in and out and be put into a balanced match of the appropriate skill level, please feel free to contact me. The hosted version on pkuru.com is free to use, but I can also assist in my free time on a volunteer basis if you wish to adapt the front-end open source code.

  • by motohagiography on 5/26/25, 7:35 PM

    - work all day at cool job for smart people

    - applying ML/AI to some security research with some defence or product possibilities

    - impementing a test for a quant'ish trading idea that just won't leave me alone

    - preludio en mi menor by augustin barrios mangore

    - piaffe to canter transitions on a horse

    - still figuring out what I actually want to do, but mostly who I want to make something for

  • by tsbischof on 5/27/25, 11:00 AM

    An app to screen properties based on your own esoteric criteria. Things like, "I want to have a balcony facing south, looking at a park." Then you can send a list of suitable properties to a real estate agent to scout, or set a notification in case any of them come into the market
  • by Andi on 5/27/25, 1:03 PM

    A compound word splitter in JS that splits up words of different (esp. Germanic) languages down to simplexes reliably based on a dictionary, including Segmenter API and SQLite FTS connector. Works very reliably by internally using statistics for known compound words, too, and a stemmer.
  • by ryukoposting on 5/25/25, 11:28 PM

    A POTS line simulator. Basically a telco central office that fits on your desk. Up to 16 lines, touch tones only, only 1 call at a time. No digital intermediate between the caller and answerer, just a pure analog line.

    I'm going to plug a couple phones into it, but the main goal is to get all my old computers to talk to each other using their modems.

  • by p-s-v on 5/25/25, 10:44 PM

    New Knife Day: (https://new.knife.day/blog/knife-steel-comparisons/all) My goal is to build the most complete wiki and social network for knife collectors, makers and consumers researching a new purchase
  • by anfractuosity on 5/25/25, 8:41 PM

    I'm working on 3D printing a lens mount and battery holder for Canon EF lenses to a night vision tube I've got (https://github.com/anfractuosity/darkplace).

    As well as been playing with creating plastic keys using a flatbed scanner with the printer.

  • by bitwize on 5/26/25, 4:31 AM

    Currently trying to bring my NetBSD build workflow staggering back to life -- again. This time I'm using hg, which seems to have some official support, rather than git. The goal is to resume work on my filesystem code -- specifically ext3 journal support, which has recently attracted interest from the FreeBSD community.
  • by bananatron on 5/26/25, 6:19 PM

    An text-based online RPG (inspired by muds of yesteryear) inhabited by LLM-driven NPCs which takes place in the zombie-infested wild west (side project for about 2 years now, should be live soon ) https://www.blightwood.online
  • by tomek_zemla on 5/25/25, 9:53 PM

    A modern take on ESL (English as a Second Language) vocabulary building flashcards. It might also be fun for native speakers who like language games. It is in beta and feedback is very welcome - iterating to improve it... https://www.dictionarygames.io
  • by wila on 5/26/25, 12:04 PM

    Working on AntView.

    AntView is an ActiveX wrapper for the Microsoft WebView2 component. AntView enables programming languages that cannot use the WebView2 component directly to have a modern browser component in their applications.

    You can find it here: https://antview.dev

  • by raindy_gordon on 5/25/25, 11:54 PM

    https://finalefeline.com

    I'm developing a small community focused on rating TV show endings. I've grown tired of investing time in series that get canceled and end on cliffhangers. Unless the show is really good, and even then, I prefer starting knowingly.

  • by EdA1 on 5/27/25, 10:09 PM

    Outside of work, I've been making small projects for fun in my spare time. Most of which need to be refined. The latest one being https://tools.coresoftworks.net/
  • by burgerone on 5/26/25, 7:31 AM

    Far less spectacular or impressive than other projects I've seen here bu I wrote a quite small blogging engine
  • by hilti on 5/25/25, 8:42 PM

    I‘m working on some scripts to make my Mac life a little easier:

    1) Setup Apache https://github.com/marchildmann/IDS-Scripts

    2) Setup MLX and MLX-LM Finished by tomorrow

    3) Working on a micro PHP framework to instantly deploy an API, connect a database and have a basic middleware

  • by lylo on 5/26/25, 7:31 AM

    Pagecord (https://pagecord.com) - an open source blogging platform written in Rails. Post by email, reply by email, subscribe by email.

    Who needs Substack?

    https://github.com/lylo/pagecord

  • by naftalibeder on 5/26/25, 1:23 AM

    https://polyreader.app

    My brother is always sending me articles to read, and I don't like reading at a computer, so I made a tool to send articles to my Kindle. It makes me happy and I use it every day, along with a small but apparently happy customer base.

  • by sp1982 on 5/25/25, 10:24 PM

    Working on https://jobswithgpt.com to solve my own frustration with job search. Indexes only jobs posted directly by companies (on their own sites or ATS). Offers simple features like saving jobs, reviewing resume against job listing using openai.
  • by kimjune01 on 5/26/25, 2:12 PM

    I just published MCP Ghost, an MCP client you can call from Python. It's the one orchestration layer that deals away with the boxes-and-arrows of graph-based workflows of today.

    https://github.com/kimjune01/mcp-ghost

    it's on pip!

  • by nazcan on 5/25/25, 10:21 PM

    For those in Canada, I've been working on SnapEntry - which automates entry into apartment buildings with one time use codes.

    I got tired of missing deliveries, so now software answers the buzzer.

    Using a mix of telephony, transcriptions, and websockets. Webserver is in C++.

    https://snapentry.ca

  • by lostmsu on 5/26/25, 3:34 AM

    Realtime voice API. I want you to be able to submit a few form fields to an API endpoint and have AI call your customer by phone and collect that information.

    After that's out (hopefully end of the week), gonna focus on ambient voice AI that would do turn taking (e.g. participate in conversations when it makes sense).

  • by gagik_co on 5/25/25, 9:54 PM

    Continuing my 2+ year project of building a texting-based productivity app. Started as a way to get a grip on Flutter and local-first sync for mobile, ended up being my by far longest running commitment. Still really enjoying it.

    https://tetrify.com/

  • by throwaway874839 on 5/26/25, 9:47 AM

    A music for ppl who like to listen whole albums and keep track of what they discover (and maybe share it with friends). Something like Goodreads, but for music.

    Original HN post: https://news.ycombinator.com/item?id=32551862

  • by jazzprogramming on 5/26/25, 6:39 AM

    I' working on a voxel building environment, but using irregular (Voronoi) voxels instead of the usual cubic grid ones. Still very much a work in progress:

    https://jazzprogramming.github.io/vorfract/

  • by sgammon on 5/25/25, 8:17 PM

    Elide, a new polyglot runtime. https://elide.dev
  • by rodolphoarruda on 5/26/25, 5:22 PM

    1. Consumer demand/trend identification: a tag based survey system that allows companies to identify trends in the market at early stage.

    2. Productivity tools for independent sales reps that simulate a Sales supervisor/manager. Fights procrastination and lack of focus on daily activities.

  • by samschoice on 5/26/25, 4:01 AM

    I have been working on a site to create and share your dev stacks over a weekend. Did not have much to do.

    https://www.sharemydevstack.dev/

    Still working on some updates to it like a search

    Add your stack without going to the actual create your stack page etc.

  • by noahfk on 5/26/25, 10:53 AM

    I've just released an update for my spatial audio /3D music software https://www.audiocube.app/blog/update-v25520

    Now I'm updating the user manual to show all the new features!

  • by ainiriand on 5/27/25, 5:17 PM

    I am making an incremental game prototype in rust and wasm, so I made this library for me to handle extremely big numbers: https://github.com/sh4ka/big-number
  • by pawelkobojek on 5/26/25, 6:52 AM

    Adding a support for direct CDP connection with our custom browsers cluster that powers our web scraping API (https://scrapingfish.com/) so that our customers can integrate it into their existing workflows.
  • by rpearcea on 6/1/25, 6:24 AM

    A computer algebra system hosted online at http://axcas.net
  • by ilaksh on 5/26/25, 1:04 AM

    https://github.com/runvnc/mindroot . Basically open source Custom GPTs. Heavily focused on plugins. Has browser use, computer use, agents can delegate subtasks, Chroma KB, etc. Fully customizable front end.
  • by nirkalimi on 5/26/25, 5:21 PM

    Currently working on https://ireact.to/ - A public inbox for content creators.

    Its a super simple way for your community to submit and vote on the content that they'd like you to check out/react to next.

  • by gabriel-uribe on 5/25/25, 10:27 PM

    Nudges Mandarin-Chinese learners to read comprehensible input for 3 mins/day without an app :)

    Simply emails you the story with chinese characters, pinyin, etc based on your level and story topics of interest

    Link: https://dailychinesestories.com

  • by solresol on 5/26/25, 1:26 PM

    A beautiful implementation of the most exotic sorting algorithm I'm going to teach this semester:

    https://bead-sort.arithmetic.guru/

    Oh, and also a PhD on p-adic machine learning, but no one will remember that.

  • by p0deje on 5/25/25, 11:11 PM

    https://github.com/alumnium-hq/alumnium

    Keep working on a test automation library that should allow writing browser/mobile tests easier with LLMs help, so I could focus more on testing, and less on automating.

  • by iddan on 5/26/25, 4:00 PM

    A sales copilot for startup founders. You can think of it like Cursor but for sales (in the sense it integrates into existing systems and giving an ai native workflow on top of it). https://closer.so
  • by danielvaughn on 5/26/25, 1:17 AM

    I’m building a keyboard-driven tool for designing in the browser. It’s like a mashup of Webflow, Storybook, and Vim.

    It’s still in development, but you can see a codebase for an earlier prototype here:

    https://github.com/matry/editor

  • by XCSme on 5/26/25, 11:32 AM

    Trying to do better marketing for my self-hosted analytics apps (https://uxwizz.com/ and https://wplytic.com/)
  • by JanisIO on 5/26/25, 12:42 AM

    A web os based on Vue components as apps, with a bunch preinstalled (including basic app repositories and terminal), search and sync (which I just started working on) — https://jun.is (a bit more buggy on mobile yet)
  • by codr7 on 5/25/25, 9:41 PM

    Currently taking a break from my C book to iterate my Lisp dialect in Go.

    https://github.com/codr7/hacktical-c

    https://github.com/codr7/eli-go

  • by ramon156 on 5/26/25, 7:33 AM

    Finally want to make a start this week on a database manager that doesn't suck.

    DBeaver was my go-to but the UI became too buggy for me. Alternatives all cost a buttload of money for basic features and I couldn't be bothered spending money just so I can make a backup of my DB

  • by rpastuszak on 5/26/25, 10:00 AM

    1. New version of Enso: https://write.sonnet.io

    2. Getting back to writing regularly after a health break (https://untested.sonnet.io)

  • by nahumfarchi on 5/26/25, 4:33 AM

    A geometry processing library in the Odin language - https://github.com/nahumfarchi/odin-geometry.

    Not much yet, it includes a basic half-edge implementation and a couple of small examples.

  • by Kuyawa on 5/26/25, 8:59 PM

    Adminix is an administrative app for small businesses featuring invoices, purchases, accounts payables, receivables and inventory.

    You can take a look at https://my.adminix.app/demo

  • by hoppp on 5/28/25, 8:22 PM

    Tokenized and ownable dice games. Perpetual and verifiable.

    Its blockchain dev using the flow blockchain's verifiable random function, basically gambling where the games are NFTs and the fees go to NFT owners.

  • by artrockalter on 5/27/25, 7:23 AM

    - AI wrapper to summarize long text files (sort of like the LLM-plays-pokemon agentic summary of conversation history)

    - single page site for keeping track of what you're reading/watching (building for my parents who use pen and paper for this)

  • by lunarcave on 5/25/25, 9:17 PM

    ParseLM: https://github.com/parselm/parselm

    It's a Typescript library that allows you to wrangle structured outputs from LLMs and pipe them to programmatically useful control flow or structured data.

  • by tonyedgecombe on 5/26/25, 10:21 AM

    Working on a PDF driver for my PostScript interpreter. The drawing model is very similar between the two so it should be fairly straightforward. The only exception is the graphics save stack which persists between pages in PostScript but doesn't in PDF.
  • by ema on 5/26/25, 7:37 AM

    I'm making a website for learning languages through comprehensible input: https://input.emanuelrylke.com/

    The idea is to aggregate videos by language and then sort them by difficulty.

  • by ALLTaken on 5/26/25, 10:31 AM

    AI Augment - Enabling SMEs to keep quality jobs local, without giving up data.

    Novelty: Massively Agentic multi-modal AI Model with task-based agent synthesis and no measurable hallucinations. New consensus algorithm able to integrate empathic reasoning and emergent motives.

  • by gjones779 on 5/27/25, 12:25 AM

    Currently just finished building a job board website for restaurants. Had AI help build it. Initially it was an app but thought it was best to try a website version now. Next up is marketing and getting users. Every step seems complicated.
  • by litemn on 5/25/25, 10:25 PM

    Started a small Kotlin project - an llm-based assertion library, to verify the response from another LLM, check images or, actually, anything https://github.com/Litemn/llm-assert
  • by departed on 5/29/25, 3:01 PM

    I'm making a web app for watching various world news TV channels on the go.

    https://worldnews24.tv/

  • by Zamaamiro on 5/25/25, 9:30 PM

    I’m working on a research cybersecurity tool that attempts to combine the natural language understanding and information synthesis strengths of LLM-driven agents with symbolic logic and knowledge bases expressed as Datalog programs for determinism and declarative semantics.

    The approach is to perform system scanning using a combination of LLMs and traditional algorithms to dynamically populate a Datalog knowledge base. The facts of the program are constrained to a predefined “model schema” of sorts and a predefined set of rules that encode specialized domain knowledge of how new facts can be derived from known facts.

    We generate proof trees / attack graphs from the knowledge base and queries posed to it. The attack graph uses big-step semantics to plan and guide the execution flow, and the system dispatches to agents with tool use to fill in the details and implement the small-step semantics, so to speak. This may include API calls to a Metasploit Framework server or RAG over vulnerability and exploit databases.

    We use Pydantic AI to constrain the LLM output to predefined schemas at each step, with a dash of fuzzy string matching and processing to enforce canonicalization of, e.g., software names and other entities.

    Tl;dr: neurosymbolic AI research tool for cybersecurity analysis and pentesting.

  • by primaprashant on 5/26/25, 5:40 AM

    A minimal website (https://lgtms.app/) to get a random ASCII art for the acronym LGTM cause I love using them in the comment field while approving PRs. Supports CLI as well.
  • by kebsup on 5/25/25, 11:00 PM

    https://vocabuo.com

    App with dynamic/flexible spaced repetition flashcards for language learning.

    Recently I've added dialog & definition cards, so I can learn German from short dialogs with images and audio.

  • by ensemblehq on 5/26/25, 11:13 AM

    An S3/Blob Storage bucket monitoring system that checks for files when you expect them to be there. This allows you to check when files are available for processing and if they are not, you’ll receive a notification via email or Slack.
  • by jlengrand on 5/26/25, 8:53 AM

    I've been working on a tiny library to handle the OpenGraph protocol in Kotlin. It's been fun https://github.com/jlengrand/opengraphkt
  • by bl4kers on 5/25/25, 11:29 PM

    Finally got around to cleaning up and publishing my userscript for recreating the old Slack UI (before August 2023)

    https://github.com/blakegearin/old-school-slack

  • by torvald on 5/26/25, 10:56 AM

    Yesterday's shenanigans: https://clubmate.place/ - find (and/or register) where you find your ClubMate! Just click on the map to add a store.
  • by henning on 5/25/25, 9:21 PM

    My stenography app is stable enough that I can actually use it to learn stenography with it.
  • by hboon on 5/26/25, 12:31 AM

    I have been building a Bluesky+X cross-posting tool with Bluesky analytics — https://theblue.social for the last few months. 2nd time I've gone full indie in 30 years.
  • by breadchris on 5/26/25, 5:29 PM

    A recipe site that makes my favorite cooking youtuber videos easier to follow https://justshare.io/recipe/1Dd7GNm68hI
  • by dingjiaqian on 5/27/25, 1:39 PM

    A simple web app to manage appointment for my barber, here's the repo: https://github.com/Bogghi/cut-connect
  • by rozenmd on 5/26/25, 8:05 AM

    I added dark mode to OnlineOrNot's web app (https://onlineornot.com) recently, as part of a new focus on making the user experience as world-class as I can.
  • by hemmert on 5/25/25, 9:48 PM

    I‘m writing a visual travel guide for the edge of the humanly thinkable:

    https://www.unthinkable.net

    (I made a small newsletter sign-up form, feel free to join the wait list for betas and a free e-Book!)

  • by mmarian on 5/29/25, 11:02 AM

    Just writing blog posts on all my startup failures: https://developerwithacat.com
  • by egorbatik on 5/25/25, 10:30 PM

    https://zerem.fi - Offshore Real Estate - Crypto Friendly

    * We are just starting with Projects in Porto Belo - Brazil. We are adding more countries soon, but it is worth to explore the catalog.

  • by sch00lb0y on 5/26/25, 11:46 AM

    I'm building an AI based habit tracker. https://health.poonai.xyz/ You might like talking to the agent, It's pretty funny actually.
  • by skoutXII on 5/26/25, 4:36 AM

    I'm working on a desktop app called runik that lets you generate and manage e-reader dictionaries for fictional books and series.

    https://github.com/Runik-3/core

  • by TOGoS on 5/25/25, 9:42 PM

    Ostensibly, making French cleats to put on the walls around my house to hang all my computers (and other stuff) on.

    In practice, writing journal entries about why I can't seem to get myself to make all these French cleats that I supposedly need.

    Also some software stuff.

  • by guybedo on 5/26/25, 12:36 AM

    here's the answers by category: https://extraakt.com/extraakts/what-are-you-working-on

    That's what I'm working on.

  • by ravroid on 5/25/25, 8:24 PM

    I was getting tired of summarizing long articles & threads on HN/Reddit with ChatGPT so I made a simple little Chrome/Firefox extension to do it for me:

    https://literead.ai

  • by daza on 5/25/25, 8:24 PM

    I’m currently setting up Hyprland—it’s my first experience with a tiling window manager.
  • by dpacmittal on 5/26/25, 4:50 AM

    Working on Pandora's Inbox (https://pandorasinbox.com). Aiming to be the biggest email search engine. Would love to get feedback from the HN crowd.
  • by nhatcher on 5/25/25, 9:33 PM

    I'm redoubling work on IronCalc (https://www.ironcalc.com), a spreadsheet engine. Actually considering going full time on what it begun as a side project.
  • by nlh on 5/25/25, 10:21 PM

    I'm a tech guy turned rare coin & currency dealer -- this is my world:

    https://rarity7.com

    The retail site is 100% custom code built in Crystal (server) and Svelte (client). The only part that isn't running my own code is our checkout flow -- I let Shopify handle everything after "Add to Cart".

    Our system backend is a separate Crystal app which handles inventory management, pricing research, and price prediction. I've developed an ML model to do price prediction and it kinda works?

    What I'm actually working on: This is my full-time gig and probably 60% of my time is spent running the business (going to coin shows, buying coins, photographing new purchases, etc.) and 40% is spent writing code to make the 60% run more efficiently :). It seems I have an infinite list of things to do -- improvements to our retail site; Improvements in how to efficiently go from coin to retail listing (turns out you can send just photos of coins to Claude and with the right prompt it will actually give you a reasonably good description that doesn't sound toooooo AI slop-y); Next "big" project is adapting our ML model for paper currency. The taxonomy is similar but not the same and there's a whole world of notes out there that need to be priced.

    Always happy to talk about this stuff so always feel free to email with any numismatic (or tech-numismatic) questions. noah@rarity7.com.

  • by wtf242 on 5/25/25, 10:55 PM

    recently launched book recommendations feature for my books side project that I put a LOT of work into. I might be biased but I think it works well as long as you give it your favorite books.

    https://thegreatestbooks.org/recommendations?demo=tgb2025

    warning: account required, and the full featured version where you can specify book length, include/exclude genres/subjects, etc requires a membership. if you would like to test it though just e-mail me at contact@thegreatestbooks.org and I'll mark your account as paid.

  • by apstyx on 5/26/25, 12:04 PM

    Working on https://are-we-up.xyz/ - A very basic website pinging service for non-technical people.

    Considering expanding the service for REST endpoints.

  • by flashblaze on 5/25/25, 8:33 PM

    Currently working on InstaClock. Time tracking app for individuals. Do check it out: https://instaclock.app

    I redesigned the home page today itself. Any feedback is appreciated!

  • by mxrio on 5/26/25, 12:49 AM

    Im working in a new form of payment transaction, where you can add products, service or money as a new way of payments. This will require a previous "perfil trustment" to garantize the process of transaction's.
  • by jfim on 5/27/25, 9:02 PM

    Training a GPT-2 model from scratch on my desktop to learn more about how LLMs work under the hood. Next step is modifying it to be multimodal, and then trying out diffusion models.

    Pretty fun project!

  • by jelled on 5/26/25, 12:19 AM

    A native MacOS app called CutWord that turns command words spoken during video recording into automatic timeline edits.

    You can grab a TestFlight link at https://cutword.com

  • by stitched2gethr on 5/26/25, 12:49 AM

    Been building proxymock (proxymock.io) a free CLI tool to make local apps feel connected to prod, or any other environment. Good for fast integration testing, mocking, driving load, etc. Critical feedback appreciated.
  • by wsintra2022 on 5/26/25, 1:00 AM

    Been working on a agentic system of Jungian opposites, thinking, feeling, sensation and intuition, just for fun and to learn rust and LLM combinations, system prompts etc, it’s been fun and I think that’s all for now.
  • by martinrue on 5/26/25, 5:30 PM

    I'm working on a language learning tool. An early version, that I'm quickly improving is live here: https://langsesh.com
  • by Igor_Wiwi on 5/26/25, 3:17 PM

    Started as a handy tool for personal use, now paid application. From launch to first paying customer in just 1 month: https://jar.tools
  • by sameg14 on 5/26/25, 6:34 PM

    https://preppear.com Magically remove ads from any recipe website, save to your collection and automatically generate meal plans
  • by pants2 on 5/25/25, 8:51 PM

    Check out Voibe: https://github.com/corlinp/voibe

    Open source Mac-native menu bar app for speech to text using GPT-4o-transcribe (current STT SOTA)

  • by codazoda on 5/26/25, 2:38 AM

    I’m working on another midlife million dollar idea.

    https://www.ammid.com

    You might have read my previous article about How To Lose Money with 25 Years of Failed Businesses.

  • by vicarrion on 5/26/25, 3:15 PM

    Browser extension to let you categorize and rank your search results in a collaborative way https://catsearch.net/
  • by taormina on 5/25/25, 11:48 PM

    I’m still working on Danger World!

    https://danger.world

    Flutter + Flame + Spine + YarnSpinner. After a year of development, we’re coming up on some very fun milestones!!!

  • by weiwenhao on 5/26/25, 4:14 AM

    A new programming language inspired by golang. I'm trying to share and promote it.

    https://github.com/nature-lang/nature

  • by roland35 on 5/26/25, 12:31 AM

    I'm building a cli / tui program for dealing with jira. I enjoy project management, and even jira, but just hate how long it takes to do anything. Luckily the API is pretty easy to work with!
  • by busymom0 on 5/25/25, 11:33 PM

    I am working on version 2.0 of HACK (an iOS, macOS and Android app for hacker news). Currrntly only working on iOS and macOS version.

    It's not exactly version 2.0, it's built entirely from scratch and instead of only hacker news, it can also be used for similar forum sites like Lobste.rs, Tildes, Lemmy etc. In fact, it's built in a way such that more website support can be easily added on the fly.

    I had restarted this 3 times in the last 2 years. But the current code is finally coming together to be released to the public.

    Currently, I already have the reader part working. So one can read posts, comments, expand collapse comments, read articles etc. I don't have the writer part working yet (voting, favoriting, commenting). I am debating whether I should just release the reader part first and then continue working on the writer part and release it as part of update. Thoughts?

    https://apps.apple.com/app/id1464477788

  • by eqmvii on 5/25/25, 8:32 PM

    AI agents and testing “vibe coding”

    It doesn’t feel there yet, but starting to seem some workflows could be close. And non-technical folks at business are starting to pay attention and want projects moving in those areas.

  • by jpcerrone on 5/26/25, 2:15 PM

    I'm working on an ear training app that listens to what you play on guitar. https://gapsguitar.com/
  • by AminZamani on 5/29/25, 8:09 PM

    I’m working on a personal project to design a spoken language inspired by Tolkien’s Elvish. Still early and learning as I go.
  • by dirteater_ on 5/26/25, 5:27 AM

    App for learning chinese, aimed at intermediate learners. SRS, reader, import content. Lots of fun problems like word segmentation, relevant distractors, integrating with LLMs, local-first sync.
  • by rriley on 5/26/25, 2:28 AM

    roleplayr.ai : a browser extension that lets you talk to any image on the web.

    An LLM answers in-character; Try it free: https://roleplayr.ai

    Would love feedback.

  • by cadr on 5/25/25, 10:14 PM

    I'm building an amateur radio SSB transceiver for the 20 meter band.
  • by aproductguy on 5/26/25, 6:36 PM

    I've been working on a platform for car collectors to manage their car collections. https://capsured.com
  • by harubi on 5/26/25, 8:55 AM

    I’ve built https://orateai.app

    A free macOS that does TTS to any highlighted text in any app with AI voices. A Speechify alternative.

  • by herol3oy on 5/25/25, 8:34 PM

    I'm working on Austen[0] which generates story relationship graphs with Mermaid

    [0] https://github.com/herol3oy/austen

  • by bradly on 5/26/25, 12:35 AM

    Been playing with my birdnet detection data. Made a realtime synth based on species detections and working on wireless framed art piece that displays the latest detection on an eink display.
  • by strontian on 5/26/25, 4:10 AM

    I made a free copy/paste helper meant to help get multiple source code files into LLMs. Just something simple to give more granular control over context and work with other ides eg xcode

    pastybara.com

  • by mark336 on 5/26/25, 12:06 AM

    Website for news can post/reply. https://asiaviewnews.com/gigabots/threads
  • by robch on 5/26/25, 4:14 AM

    Putting the final touches on the iOS version of my HN client done. Android client was refactored to Kotlin multiplatform and just has a few components that need to be reworked for iOS.
  • by digest on 5/26/25, 10:30 AM

    A daily briefing that bundles content from every source you care about into a simple newsletter format.

    https://usedigest.com

  • by Wdorf on 5/28/25, 5:56 AM

    Support for bigger group sizes (5 - 8 users) for https://catchup.rocks
  • by Yiling-J on 5/26/25, 12:31 AM

    Prepare to release https://github.com/Yiling-J/tablepilot v0.4.0, new workflow feature
  • by tomlockwood on 5/26/25, 6:14 AM

    I'm writing a doorknock organising application for an Australian climate action community group, using lots of PostGIS and as much vanilla js as I can! Super fun so far.
  • by alexpadula on 5/26/25, 3:04 PM

    Atomic non blocking writes for storage https://github.com/guycipher/wildcat
  • by alexnastase on 5/25/25, 8:52 PM

    I'm currently working on an online gallery platform for professional photographers: https://picstack.com
  • by nbbaier on 5/26/25, 2:49 AM

    Looking for a job (targeting fullstack engineering, ai engineering) and trying to get myself unstuck and back to coding everyday. Neither going great, but that's life?
  • by nozmoking on 5/25/25, 10:22 PM

    A proof-of-work based imageboard; as you navigate through different threads and mouseover certain images and such it mines on them. Threads are sorted and bumped based on PoW.
  • by jingntonic123 on 5/26/25, 2:22 AM

    A marketing asset generator that allows users to input campaign details (eg. feature launch PRDs) to then automatically create launch assets (eg. blog, social post, etc)
  • by jingntonic on 5/26/25, 2:22 AM

    A marketing asset generator that allows users to input campaign details (eg. feature launch PRDs) to then automatically create launch assets (eg. blog, social post, etc)
  • by metladsl on 5/26/25, 8:04 AM

    A stealth enterprise-grade headless browser for hard automations. https://metalsecurity.io
  • by Eikon on 5/25/25, 11:19 PM

    I am working on https://www.merklemap.com/ a certificate transparency search engine.
  • by simquat on 5/25/25, 9:41 PM

    I'm working on https://blueprintapp.design an app to simplify the creation of user flows.
  • by aduermael on 5/25/25, 10:54 PM

    I'm building an open-source and mobile-first Roblox alternative called Blip. (https://blip.game)
  • by level09 on 5/26/25, 8:34 AM

    Vilcos — https://vilcos.com/

    Futuristic CMS concept with Embedded agent to replace traditional forms.

  • by grxar on 5/26/25, 10:53 AM

    We develop the best place for typescript job seeker https://typescript.jobs/
  • by smith-kyle on 5/26/25, 6:27 AM

    Recently pivoted. Working on Cursor for PR reviews.

    You can sign up for the beta here: https://diffender.com

  • by detectivestory on 5/26/25, 8:58 AM

    A site for helping smaller musicians on youtube to get their first listeners: https://nwtb.eu
  • by siliconc0w on 5/25/25, 10:18 PM

    AI app generator that also generates the backend, a database schema, and auth. Mostly a test bed for different workflows and to see how good the SoTA models are.
  • by Ygg2 on 5/26/25, 7:05 AM

    SIMD enhanced YAML parser. My original parser didn't have enough MB/s (around 2-70 MB/s), so I'm trying out SIMD. I hope it goes well.
  • by LarsDu88 on 5/25/25, 10:33 PM

    Gemini 2.5 TTS client integration for the Unity game engine so indie games can generate dialogue directly in the editor (and perhaps live games, eventually)
  • by badenglish on 5/26/25, 8:59 AM

    A new computing system based on parallel addressing.

    Two demo are already written: explanation how to compute parallel and algorithm of parallel space emulation.

  • by arsalanb on 5/25/25, 10:40 PM

    https://livedocs.com

    An AI data scientist for serious data work. Think of it like an AI native Jupyter notebook.

  • by Amza on 5/25/25, 10:29 PM

    Tailor your resume and cover letter in minutes: https://resumebuildai.com
  • by TZubiri on 5/25/25, 10:52 PM

    A local-first multi device app for digitally shuffling, dealing and recording game history and points for a specific points based card game (Truco)
  • by Yoric on 5/25/25, 8:57 PM

    Graph algorithms running on existing quantum computers.
  • by bobsacamano19 on 5/26/25, 4:15 AM

    Big 5 Archive (https://big5archive.live/): a Chrome extension that auto‑opens news articles in Archive

    I've been reading the Wall Street Journal every morning this year but I'm too cheap to pay for the hefty $39/mo. subscription. My routine was: open article → hit paywall → copy URL → paste into Archive. After a few dozen times that got old.

    So I built Big 5 Archive: a tiny Chrome extension that automatically redirects any link from WSJ, NYT, Washington Post, L.A. Times, or USA Today to its archived, paywall‑free copy.

    I had fun making this and I hope it is helpful to the news-readers out there. Feedback welcome, happy reading!

  • by samirsd on 5/25/25, 10:31 PM

    working on an app that lets you take multitrack “voice memos” by plugging your phone into an interface. then the audio is automatically synced to the cloud, akin to a primitive dropbox for audio. there’s a simple mixer to adjust levels for local playback. for now i use it to get hi fi recordings of band practice and shows.

    https://carnyx.ai

  • by ivylee on 5/27/25, 2:43 PM

    I'm experimenting with conversational AI, for example live video calls with Santa. Super fun.

    If you want to try, send me an email.

  • by jmhmd on 5/26/25, 4:30 PM

    litevna.app - a DICOMweb compatible medical imaging archive, built on cloudflare workers, to optimize fast image delivery globally. Images are all encoded as HTJ2K for progressive image loading, and the popular OHIF zero-footprint DICOM viewer is built in.

    Building mainly to power the next generation of pacsbin.com, but may offer as a standalone service as well.

  • by kilroy123 on 5/26/25, 2:12 AM

    A free tool to summarize and "chat with your emails"

    https://aichat.email

  • by reducesuffering on 5/25/25, 11:47 PM

    How to find your ideal place to live in the US: https://exoroad.com
  • by wtp30twice on 5/26/25, 12:01 AM

    odor tech CPG startup. just dropped $1800 to fund first round prototyping. super excited as this is my first startup. loving it already
  • by elpakal on 6/1/25, 1:39 PM

    iOS app size analysis tool that runs locally on your mac https://dotipa.app
  • by whytaka on 5/26/25, 6:14 AM

    Webring.GG - www.webring.gg

    It's a democratic webring creator/management app where members can vote on new websites to join their ring.

  • by sm001 on 5/26/25, 11:23 AM

    we at https://www.dolphinwhispers.com are building an Android app to let you add your own AI models to it and compete with DolphinGemma. The app can currently be used without AI models and chat ethically with dolphins by using your own intelligence.
  • by r3tr0 on 5/30/25, 7:30 PM

    yeet - a dynamic runtime / system performance toolkit for Linux.

    you can checkout our sandbox at https://yeet.cx/play

  • by skeptrune on 5/26/25, 7:00 AM

    CLI that abstracts rolling out multiple terminal-driven coding agents in parallel with the same prompt using git worktrees
  • by davedx on 5/26/25, 5:46 AM

    A Europe based PaaS. It’s now dog fooding (the management dashboard is deployed to the platform). Slow and steady progress
  • by ravivooda on 5/26/25, 6:33 PM

    https://preview--tool-millions-accessed.lovable.app/launchpa...

    For the tinkerers of the world: drop your tool, we handle auth, payments, usage. You get paid per run.

    For the consumers: don’t like selling your data just to convert a file? You’ve found your home. No tracking. No ads. No dopamine hacks (only regular dosage).

  • by DigitalNoumena on 5/26/25, 8:49 AM

    An app to estimate the risk of your job being automated and how to hedge against it professionally and financially
  • by jorisboris on 5/25/25, 11:26 PM

    Exploring N8N

    I have the impression clients like it when their code is “visual” so I’m trying to learn more of it to attract new clients

  • by kelsey98765431 on 5/25/25, 10:24 PM

    i lead our ai products team at io.net, come get some free credits (1m tokens per model per day). contact us if you like the service, our api is openai compatible and we have deepseek, qwen3, and llama 4 maverick along with lots of other neat models. hope to have more cool stuff out by the end of the quarter, thanks.
  • by tehlike on 5/25/25, 9:47 PM

    On and off building https://pricetracker.wtf
  • by jachee on 5/26/25, 2:41 AM

    A python script to flip and walk quote-skeet meme threads on bsky with the object of visualizing them non-linearly.
  • by ranuzz on 5/25/25, 8:27 PM

    I'm building small web and mobile games. Always exploring new game ideas, happy to chat with others in game dev
  • by thedangler on 5/26/25, 1:43 PM

    Feel like I've been saying this way too long. Connect Payment Systems to various unsupported web builders.

    Fantasy Apps

  • by maurodelazeri on 5/26/25, 2:18 AM

    OpenSource Dex agregator for Solana - easy to anyone to integrate on their apps, setting their own fees and ui
  • by steveharrison on 5/26/25, 7:00 AM

    I'm working on yet another spending analysis app. How will this one be different?

    - Stores transactions locally in a SQLite database, so in theory you could build your own Front End if mine didn't do everything you wanted. Think someone who wants to do a fancy "year end summary" visualisation. And if you want to do a complex filter, can just write an SQL query to the database itself.

    - Has a great UI.

    - Allows you to write your own import connector and mix 'n' mash between locally-saved CSV/OFX files and APIs, rather than going down the standard route of only supporting Plaid. Current solutions leave users high and dry if the Plaid connector doesn't work well / they want to import old data (Plaid only gives the last 2 years I think).

  • by sbalamurugan on 5/26/25, 9:55 AM

  • by nickpeterson on 5/25/25, 8:26 PM

    Converting a 600GB database into a 1GB database through refactoring/normalization/compression.
  • by pabna on 5/25/25, 9:18 PM

    I'm working on a data-visualization blog. Hoping it will lead to some cool projects / apps.
  • by fortmeier on 5/26/25, 12:15 PM

    klartraum.ai: "Klartraum will be a real-time neural rendering and inference engine build on top of Vulkan." Currently, it is mostly a pipe dream, but Gaussian splatting is nearly implemented and I plan to release version 0.0.1 in the next days.
  • by bobofee on 5/26/25, 2:43 AM

    Post-train an open source LLM on real time news for detect the current emotion of stock markets
  • by nandosobral03 on 5/26/25, 12:08 PM

    this weekend I created on a graph-based wikipedia explorer to make sharing the rabbitholes you go down in wikipedia with other people easier

    https://rabbithole.fsobral.dev/

  • by reverseblade2 on 5/26/25, 1:54 AM

    Built an llm based url shortener

    https://yurl.ai

  • by transformi on 5/25/25, 9:45 PM

    Create alternative self-made feed of videos using VEO3 based on my intercation in social media.
  • by Zaloog on 5/25/25, 9:27 PM

    Working on a pytest plugin with a tui to run tests interactively and manage plugins and options
  • by windowshopping on 5/25/25, 8:29 PM

    A new site of daily puzzles, mostly word puzzles but also one numbers puzzle. Releasing soon!
  • by yamapikarya on 5/26/25, 2:11 AM

    building blog using go with postgres and minio and self hosting on secondhand. raspberry pi on kubernetes.

    building a prometheus exporter to monitoring like temperature, cpu, ram and building simple html monitoring tool to expose those metrics.

  • by lonh on 5/26/25, 8:48 AM

    a Tool Management Platform - https://toolingmetrics.com - helping digitalize and automate tasks in the metal machining shop.
  • by Toks on 5/26/25, 12:08 AM

    A cyberpunk-themed hacking game inspired by FTL and Netrunner made in Unity.
  • by adityaathalye on 5/26/25, 5:08 AM

    A bitemporal data model in SQLite

    ... for a little SaaS app, because my friend-and-sponsor hasn't given me a deadline, nor sent irate letters asking for results.

    Think of it like the poor man's XTDB + Datomic, if you like. Readings and conversations have taken me to deep questions explored in works by Snodgrass [0], Jensen[1], and Jepsen [2]. Shout out to the XTDB folk for their feedback and suggestions. This is why I hang in the Clojure community... it's full of people doing rad stuff who are also unwaveringly kind, helpful, and generous with their time.

    ---------------------

    The pre-alpha version of "Project Writing for Nerds" [3]

    A cohort-based workshop to help fellow gentlenerds "spool brain to disk" with as little friction as possible.

    ---------------------

    [0] Developing Time-oriented Database Applications in SQl https://www2.cs.arizona.edu/~rts/tdbbook.pdf

    [1] Temporal Database Management https://people.cs.aau.dk/~csj/Thesis/

    [2] Jepsen's helpful little notes on Consistency https://jepsen.io/consistency

    [3] https://www.evalapply.org/index.html#writing-for-nerds

    (edit: fix formatting)

  • by curlcntr on 5/26/25, 1:01 AM

    Open source hybrid piano. Been a very part-time hobby for several years.
  • by solomonb on 5/26/25, 6:42 AM

    I'm starting a Low Power FM radio station for my local area.
  • by bbx on 5/25/25, 9:28 PM

    A tiny numbers mobile game, playable on Android, iOS, and the web.
  • by muhammadusman on 5/25/25, 8:23 PM

    moving off of Ghost to an astro blog b/c I don't write often enough to justify a $110/year fee and I also found out there's no way to moderate spam comments.
  • by gnuser on 5/26/25, 1:53 PM

    Oh you know, just the most advanced mmometarpg in history.
  • by meowzarella on 5/25/25, 10:59 PM

    an online marketplace for talents, sapces, and funds.

    it's a tarpit idea that a lot of users and investors like to shit on so i decided to just build something that i like myself.

  • by rurban on 5/26/25, 10:19 AM

    Getting a LLM writing a python module I'm considering
  • by GMoromisato on 5/25/25, 10:26 PM

    I'm still working on https://gridwhale.com

    It's basically a full-stack web platform written entirely from scratch. One of these days I'll write about it and get yelled at for reinventing the wheel.

    But I'm using it internally and for my biotech clients and I'm still excited about it.

  • by elpakal on 5/25/25, 9:45 PM

    iOS app size analysis tool that runs locally on your Mac https://dotipa.app/
  • by sumeruchat on 5/26/25, 8:26 AM

    Tradofire - Swipe Like Tinder on trading opportunities https://tradofire.com

    I got everything done technically but marketing is challenging

  • by ciguy on 5/26/25, 12:31 AM

    Kubernetes upgrades and AI agents. www.kubegrade.com
  • by bobowzki on 5/26/25, 7:56 PM

    Rust based software defined radio application
  • by arionhardison on 5/26/25, 1:38 AM

    AI powered Public Health Management: phm.ai
  • by SpecialistK on 5/26/25, 6:33 PM

    I bought a cheap doorbell camera. It uses an app called Aiwit which I frankly don't trust. So I'm going to spend a few hours seeing if I can get a raw feed which I can host on my own server and block this thing from any external access. Or I'll just return it.
  • by peab on 5/25/25, 10:40 PM

    HN is probably not the target audience for this, but hey, here we are: https://www.youtarot.app/pages/about

    A web app for people to get tarot readings, and create their own tarot cards using AI. I'm enjoying working on this because I'm using as an opportunity to learn parts of the stack that I didn't usually do at my day job - frontend, design and marketing (my career has focused more on the backend).

  • by viksit on 5/25/25, 11:34 PM

    open source llm compiler for prompts called selvedge.

    rather than manually write prompts for llms (which is like hand coding byte code for cpus), declare a structure and instructions and let the system do prompt writing for you.

    it also exposes an optimizer which can do sophisticated prompt learning for tasks.

    github.com/viksit/selvedge

  • by brynet on 5/25/25, 10:25 PM

    Making rent this month so I can unslack.. help appreciated. :-)

    https://brynet.ca/wallofpizza.html

    But seriously, I'm looking for "no-strings" sponsors, if any companies (or individuals) would like to help support me so that I can focus on open source full time. Feel free to email me: https://brynet.ca/

  • by trumbitta2 on 5/30/25, 10:19 AM

    My mental health
  • by MarceColl on 5/26/25, 1:09 PM

    Yet another Japanese learning app[0], but something that is very useful to me, so I hope it will be useful for others as well. I struggle to deal with comprehensible input that interests me at this time. The best way to immerse yourself is with content that interests you but sometimes that content is a bit advanced. I'm building this to bridge the gap, you can upload or select content that interests you (or we can recommend you content that would be comprehensible input), and we'll generate short stories, set in the universe of the content you want to learn that will introduce new words you need to understand the original content every week. The words and sentences of these stories will then be reviewed using spaced repetition (using the Ebisu SRS algo as underlying model with some modifications).

    [0] https://katarineko.com/

  • by prmph on 5/25/25, 8:47 PM

    Since I had so much trouble managing my entire digital information universe [1], I decided to scratch my itch and solve it for myself and maybe others as well. Here are my ideas about my product:

    - Manages the entire range of personal (and maybe business) information/content: Documents, Media, Messages (email, instant, etc.), Contacts, Bookmarks, Calendar, etc.

    - Is tag based, so that where to put and find content is easy to answer. Think of a set of flat folders, on one or more devices, within which the files are stored with tags attached. Since people often find navigating/browsing files more natural than searching, virtual folders will be dynamically generated to guide navigation. Also, entire folders can be treated as atomic, and tagged/managed as one object (useful for repositories & projects). And, heuristics (and maybe AI) will be used to automatically tag files when they are imported into the tool, greatly reducing the tedium of adding tags.

    - Is file based, so that all information is physically stored as individual files. This allows information to be more easily managed on a physical level: moved around, backed up, exported/imported, searched, navigated, etc. So in addition to docs, each email/instant message, contact, scheduled task/event, bookmark, etc. would ultimately be stored as a file, unlocking all the things you can do with files.

    - Has a local web-based UI launched from a local agent, so actual file content does not usually need to move across the network and stays local, and the tool is also easily multi-platform, with consistent UI irrespective of platform.

    - Provides a cloud web UI as well, that communicates with content devices through the local agent, so that content stored across multiple devices can be managed in one central location, even without direct access to those devices, team/org features can be provided. However, file content still stays local, except when shared.

    - Provides tools for exporting data as file from the data islands of various apps and service, and backing up as files to cloud storage services.

    My vision is a situation where I am in charge of my own data irrespective of whatever device, app, or service I use, can ensure that it is always available and will not be lost, and that I can easily navigate and search through it all to find whatever I want, no matter how scattered and massive it is.

    [1] Here are some of my issues with personal information management affordances of current tech, which is driving me to work on a solution:

    - Our data is too bound to device and vendor islands. Can't easily move my information across Apple/Google/Whatsapp, etc accounts. Can't easily merge and de-duplicate either. I almost always somehow lose data whenever I have to move to a new phone, etc.

    - Hard to own your data on many services: Discord, Slack, etc. Can't easily export, search.

    - Hard to have a 360 overview and handle on all your data assets and query them in a consistent manner.

    - Files as a unit of information storage and management is very ergonomic; we shouldn't allow that concept to be buried by vendors for their own gain.

  • by dabei on 5/26/25, 2:06 AM

    Vibe coding a vibe coder.
  • by nhanotia on 5/26/25, 3:56 AM

    Voice - Voice llm model.
  • by nhanotia on 5/26/25, 3:56 AM

    Voice - voice ai model
  • by czottmann on 5/26/25, 8:59 PM

    I work my contextual macOS Shortcuts launcher a bit back: BarCuts (https://actions.work/barcuts).

    Now I struggle with a marketing strategy, quite a bit. But hey, I was told it's part of the job ;)

  • by dom96 on 5/26/25, 9:41 AM

    A Pinterest alternative. Sick of seeing AI generated slop on Pinterest and want to build something better.

    I am also integrating it with ATProto.

    Current MVP supports search only: https://imaginarium.picheta.me/

  • by TMEHpodcast on 5/25/25, 11:09 PM

    Pfft. Obviously the funniest, most educational science podcast on the planet https://multiverseemployeehandbook.com/
  • by RobRivera on 5/25/25, 11:07 PM

    A video game!
  • by contingencies on 5/25/25, 8:42 PM

    Fundraising.
  • by semessier on 5/25/25, 10:15 PM

    legal tech apps via AI
  • by personjerry on 5/26/25, 5:55 AM

    Do you guys think it's too late to start building yet another AI Agent for writing software?
  • by aurelz993 on 5/29/25, 8:39 PM

    awq
  • by hiAndrewQuinn on 5/26/25, 5:44 AM

    I've been on parental leave, and it turns out newborns sleep a lot - so lots of stuff! :)

    The most exciting thing is I'm working on a way to pre-bake one's WiFi information and an SSH key into the piCore Tiny Core Linux image.

    piCore is sort of the holy grail for a lot of people who just want to stick a tiny personal-user server onto a Raspberry Pi and then not have to worry about the SD card burning out on them, because the entire system runs in RAM after first boot anyway - the only thing standing in its way, methinks, is that it requires you to physically plug in a keyboard and a monitor to get it up and running on the first boot.

    I think that's dumb. A Raspberry Pi should be a thing you can plug into a wall socket in your home and then work entirely via SSH with. I do a lot of work with Linux images and virtualization like this at my day job anyway, with more scrutiny and regulatory compliance in place - if you can imagine what "embedded devops" might look like, that's a good way to describe it. So I'm a surprisingly good fit by now for this kind of thing.

    ===

    Currently I'm neck deep in some Fish shell scripting to automate writing posts for https://andrew-quinn.me/ , similar to what I already have for https://hiandrewquinn.github.io/til-site/ . With the latter, I just type in `til` at a terminal, and I

    1. Get asked for a title;

    2. Get a fzf multi-select list of all previous tags used on the blog (this ensures I actually continue to use the same handful of tags, which makes the blog much more fun to dive down); and

    3. Get a vim window open to actually crank out the blog itself.

    aqdm doesn't have tags, but it is built on a very similar Hugo base. Honestly the hardest thing about writing this script is simply wrestling with the fish shell programming language. I should really sit down and learn it properly one day...

    ===

    We changed our modem recently, which broke the cronslave Raspberry Pi I had powering https://hiandrewquinn.github.io/selkouutiset-archive/. That led me to spend the weekend finally moving its codebase off of Raspbian and onto a fully RAM-based Tiny Core Linux.

    Running the OS entirely out of RAM for a Raspberry Pi increases its longevity by at least an order of magnitude, because you only ever read from the SD card on boot and on backups. If you configure the server such that everything is ephemeral anyway, you'll basically never see that little green "Writing" LED blink. That's how I got interested in the aforementioned prebaked piCore project!

    ===

    I collected my smattering of Finnish language learning software projects all in one place at http://finbug.xyz/ . I recently added the ability to mark and unmark words to my Finnish pocket dictionary https://github.com/hiAndrewQuinn/tsk - that makes it super easy to save words during a reading session and then import them into Anki later.

    Of more general interest to people might be https://github.com/hiAndrewQuinn/audio2anki , which takes a YouTube URL, runs it through Whisper for an automatic transcription, then slices it up sentence-per-Whisperified-sentence and creates Anki cards out of each transcription for spaced repetition listening practice.

    I made this for Finnish originally, but it fills a niche I was surprised to see had no really good locally-runnable FOSS options. There are some startups hawking a similar slice-and-dice service which I'm sure is much higher quality. But I figure the most likely people to get a lot out of a program like this are high school students, who generally don't have credit cards they can buy SaaS with - they need something they can dump their hours into, to get to work, instead of their dollar bills to get something that already works.

  • by wenc on 5/26/25, 2:48 AM

    I'm casually ideating on a new orthography for Japanese that does not require Kanji.

    Because it's hard to remember how to handwrite complex kanji (many people have character amnesia in real life due to smartphone usage), I casually wondered if it was possible create a Japanese orthography that was: (1) easily scannable (which rules out hiragana); (2) disambiguated words without Kanji; (3) still relatively compact? (which hiragana is not).

    I figured a good substrate to start from was romaji + a new emoji system.

    You know how people think LLMs can't invent things? o3 just invented this system whose goal is to maximally disambiguates homophonic Japanese words (performing the same semantic compression role that Kanji does today). This is the first iteration. After each romaji noun, it tags it with a geometric shape. These are the 30 tags o3 came up with (based on homophones requiring disambiguation):

      | Diacritic     | ◐  living              | ▢  built / object      | ⬢  nature               | ◊  abstract                  | ⟐  action / event           |
      | ------------- | ---------------------- | ---------------------- | ----------------------- | ---------------------------- | --------------------------- |
      | •  top dot    | ◐• adult / main person | ▢• building / place    | ⬢• plant / flora        | ◊• idea / thought            | ⟐• movement / travel        |
      | –  bottom bar | ◐– child / minor       | ▢– tool / instrument   | ⬢– water / liquid       | ◊– emotion / feeling         | ⟐– communication / speech   |
      | +  right plus | ◐+ group / collective  | ▢+ vehicle / transport | ⬢+ weather / sky        | ◊+ social tie / relationship | ⟐+ creation / production    |
      | ×  left cross | ×◐ animal (non-human)  | ×▢ food / consumable   | ×⬢ mineral / material   | ×◊ value / moral             | ×⟐ perception / sense       |
      | | center bar  | ◐| deity / honorific   | ▢| document / media    | ⬢| terrain / landscape  | ◊| state / condition         | ⟐| change / transformation  |
      | ‿  bottom arc | ◐‿ anatomy / body part | ▢‿ container / vessel  | ⬢‿ energy / fire        | ◊‿ knowledge / data          | ⟐‿ rest / passive state     |
    
    I gave it this wikipedia JA text:

      現代における日本語の一般的な表記法は漢字仮名交じり文であり、漢字と平仮名(昔の法令などでは片仮名)を交えて表記する。漢字は実質的な意味を表す語に使われ、平仮名は主に活用語尾[注 1]や助詞に使われる。朝鮮語などでは漢字が主として字音語にしか使われないのに対し、日本語では和語にも使われ、外来語を除いてほとんどの語に使うことができる。煙草(タバコ)や合羽(カッパ)、珈琲(コーヒー)など大航海時代以降にヨーロッパから入った語彙には、外来語であるにもかかわらず漢字が使われるものがある。
    
    And told o3 to rewrite it in the new system it just created:

      gendai◊| ni okeru  nihongo◊‿ no  ippan-teki na hyōkihō◊‿ wa kanji▢|  kana▢| majiri  bun▢| de ari, kanji▢| to  hiragana▢|  (mukashi no  hōrei▢| nado de wa  katakana▢|) o majete  hyōki◊‿ suru. kanji▢| wa  jisshitsu-teki na imi◊• o arawasu  go◊‿ ni tsukaware, hiragana▢| wa  omo ni  katsuyō-gobi◊‿ ya  joshi◊‿ ni tsukawareru. chōsengo◊‿ nado de wa  kanji▢| ga  shutoshite  ji-on go◊‿ ni shika tsukawarenai no ni taishi,  nihongo◊‿ de wa  wago◊‿ ni mo tsukaware, gairaigo◊‿ o nozoite  hotondo no  go◊‿ ni tsukau  koto◊‿ ga dekiru. tabako⬢• (tabako) ya  kappa▢– (kappa),  kōhī×▢ (kōhī) nado dai-kōkai-jidai◊| ikō ni  Yōroppa⬢| kara haitta  goi◊‿ ni wa, gairaigo◊‿ de aru ni mo kakawarazu  kanji▢| ga tsukawareru  mono◊‿ ga aru.
    
    It's pretty readable, and takes care of the homophone ambiguities (remaining ambiguities can be resolved through context). It also naturally resolves onyomi and kunyomi. Add italics and punctuation, and katakana is replaced.

    (of course, it's incorrect in parts... because LLM)

    But the idea has legs. It will probably not replace Kanji due to cultural inertia, but this could a kind of shorthand especially for handwriting.

    I'm pretty impressed! o3 just invented something new. It combined romaji and a tag system that it hallucinated to design a new Japanese orthography. As far as I can tell (I could be wrong), something of this nature has not been done before.

  • by flatthibaut on 6/1/25, 7:20 PM

    I'm building a stock portfolio tracker, because I've found myself managing many portfolios with spreadsheets and Python scripts, which became a massive time sink. At the same time I couldn't find a tracker that was 100% what I wanted, while at the same time I wanted to learn web dev, web services & cloud deployment.

    I've decided to release an MVP so I can gauge interest, and after ~8 months of deployment and 2 releases there has been some great feedback. It's definitely a much much bigger and more complex project than I originally anticipated though!

    At the moment I paused new sign ups as it's not scaling up nicely, so I'm now refactoring the services to use async / message queue for the heavy Python tasks using Celery / RabbitMQ.

    It was quite difficult to get the product in front of people that might interested and even though I found enough users to test and give feedback, it's been tough to find them. So my strategy now is to try and release blog posts on my architecture, approaches, pros/cons, etc, and build in public regularly. This takes away time from the actual development but hopefully I'll have a big enough community that I can tap into for testers when the new release is out.

    I'm not posting a link to the project or even mention the name as I got a shadow-ban in Reddit when I posted a summary to my MVP post-mortem (no link) and now I'm terrified!

    I'd appreciate any suggestions / different approaches you might have in terms of reaching more users!