Well now we have Reddit alternative (lemmy, kbin, etc) and a Twitter alternative (Mastodon). I just came across an idea of a dating app/making friends fediverse but idk how would that work but looking at how dating apps are these days which are a total shit show, I am kinda curious to hear everyone’s thoughts on that idea.
You could probably do a Meetup clone; I think some stuff for that use case might exist already.
Friend finding would require some kind of matching engine, but what you are matching people on might be somewhat sensitive. You want to find all of the bronies without revealing that you are a brony yourself. So you can’t just ship all the stuff to any instance that rolls up and says “hey I have ten thousand bronies in here, tell me all the bronies you have”. You need some kind of fancy multi-party computation stuff to do distributed matching.
And then with dating you have the same problems but also your data is even more secret and your happiest users tend to immediately quit.