from Hacker News

Show HN: Real-time 4/20 cannabis sales dashboard using Estuary and Tinybird

by sv123 on 4/20/25, 7:03 PM with 43 comments

Built this dashboard to visualize cannabis sales in real time across North America during 4/20. The data updates live from thousands of dispensary POS transactions as the day unfolds.

Under the hood, we’re using Estuary for data streaming and Tinybird to power super fast analytical queries. The charts are made in Tremor and the map is D3.

  • by cactusplant7374 on 4/20/25, 11:02 PM

    How did you get access to the data?

  • by verdverm on 4/20/25, 7:58 PM

    Cool map, I'd speed it up a bit though

    FYI, the time displays are a bit off. The time box seems correct. The time slider is off. The animation goes beyond the last time. Up to you if the slider stops in the middle, or goes to 100% which becomes larger as the day progresses

  • by dehugger on 4/21/25, 7:04 AM

    The clock in your map covered the entirety of the section I actually wanted to see.

  • by Babkock on 4/20/25, 10:48 PM

    Cannabis?? Such a racy controversial topic... I don't know if I can talk about... Marry wanna... the debble's lettuce

  • by LightBug1 on 4/20/25, 10:06 PM

    Cool analysis ... but 420 has been made so cringe now ...

  • by ivape on 4/20/25, 9:46 PM

    Walk-in sales indicate these stores are everywhere. It's kind of scary to be honest.