Oooh, neat -- @Bonfire has officially released its #Communities module: https://bonfirenetworks.org/posts/bonfire-for-communities/
I backed the project, and I'm overjoyed to see it coming to fruition. The world *desperately* needs a good open-source, open-network, open-community alternative to enshittified monstrosities like Facebook, and #Bonfire is the first one I've seen that appears to check pretty much all the boxes of "how to do it right". It's impressively complete.
(Might force me to get off my ass and stand up my own server, so I can start hosting some of the communities I'm involved with.)
And yes, yes, Discord -- I use it a lot, but it's still corporate, still likely to enshittify, and really only covers a fraction of the Community use cases. This looks better.
So check it out -- I think it's an important project, that a lot of groups could probably benefit from...