activitypub-federation-rust VS awesome-lemmy-instances

Kbin doesn't have a stable API. It's also compatible with Lemmy and interoperable, and you seem to have a misunderstanding of the advantages of Federation.

also https://github.com/LemmyNet/activitypub-federation-rust/

https://github.com/maltfield/awesome-lemmy-instances

https://lemmyverse.net/communities

I tried join-lemmy.org, but it's just an unordered list of random servers. This repo, linked there, hasn't had a commit in three weeks, which, given the recent attempt at an exodus, presumably dates it severely. This site, which the first site links, is just outright dead, and doesn't work. The last site they link is a D3 visualization that doesn't work too well - it's very cluttered, and instances constantly fall of the screen, with no scrolling capability - nearly unreadable.

推荐的公开服务器： https://github.com/maltfield/awesome-lemmy-instances

Here you'll get a quick explanation of some of the features different instances can enable and a list of which instances have what https://github.com/maltfield/awesome-lemmy-instances

https://github.com/maltfield/awesome-lemmy-instances among other places has some comparisons

Your best bet is to join a Lemmy instance with a name you like, really. Check this list of instances. If I were you I'd pick one with a good uptime, but not World or ShitJustWorks, nor Beehaw.

I don't understand the relevance of github here either. Pick an instance from https://join-lemmy.org/ or pick one from https://github.com/maltfield/awesome-lemmy-instances like I did. Heads up that the latter hasn't been updated in a while. Go through the sign up process on that instance. Use a valid email address when signing up. Check your spam folder for a confirmation email. Good luck, let us know if you have any other questions.