Tildeverse.org seems like it got a Lemmy hug if death. I can’t access it anyways.

I never heard about the tildeverse before, sounds really interesting. How does one choose which tilde to join, though? It seems to me like only cosmic.voyage has a specific theme, while the rest only differ in the OS running on the machine. Or are tildes just there to host your account, while all the interactions are done via irc?