That looks nice. If you want to share it, I’d totally try it out!

Relatable

I’m generally willing to pay for a service (I donate to Open Source Projects I regularly use) because of course there are server costs, development costs, etc. But in this case and after all that Reddit has done to its user base it would be a very bad signal to give them money for it… I like Infinity for reddit and would love to have an Infinity for Lemmy

I agree, the first two problems are rather easy to solve with phonetrack or any other of the tracking apps like µlogger, Owntracks, Traccar, etc. and nextcloud or the backend you provided. What is the reason that the simple heatmap is not ideal? Does it also lag or are you looking for filters functionality, etc.? The data pre processing must be challenging cause thats the part really seperating the self hosted solutions to Google’s one. If one could pre process the data on a nextcloud server and could render it on a map without significant lags, that would be really cool. Maybe I’ll try to work on that in the future when I got more advanced in programming.