Mastodon

Mastodon still exists, I like it and would recommend it. reply

Fedoverse

fediverse in general, which encompasses quite a diversity of software (pleroma, pixelfed, etc.) and has apparently now even started to threaten twitter enough to make it start initiatives to try and EEE it.

https://news.ycombinator.com/item?id=29231262

ActivityPub

https://git.feneas.org/feneas/fediverse/-/wikis/watchlist-for-activitypub-apps

Links