Because I couldn't find any similar solution, I've come up with a small script (Wakamonth) on top of Wakapi/Wakatime, that allows me to get an overview of worked hours at the end of the month, without me having to write down this manually. Any thoughts about it or similar solutions?
Huh, I wasn't aware of wakapi. I recall seeing wakatime several(I think?) years ago and liking the idea but ruling it out because of the reliance on their backend.
I'm not sure this particular script is useful to me but it's made me aware of wakapi so thanks for that!