linuxusers.in is a Fediverse instance that uses the ActivityPub protocol. In other words, users at this host can communicate with people that use software like Mastodon, Pleroma, Friendica, etc. all around the world.
This server runs the snac software and there is no automatic sign-up process.
I'm learning #Rust again. It's much easier the second time around, especially after having spent some time more recently with #Zig and #C++. Trying Rust after #Lisp and #python was definitely a bad idea. Much better (for me) to think carefully about manual memory management in a simpler language like C or Zig, and then learn Rust.