Interesting discussion about the differences between #Matrix and #ActivityPub at #SplinterCon .
Matrix, unlike ActivityPub, separates the group/room (a social concept) from the server/instance (a technical concept) so you don't choose a server for content or content control reasons, just for technical reasons.
I discover there are several ways to enter the #Tor network, without using one of the publicly listed (and therefore easily censorable) relays, besides domain fronting.
Project: a software library to implement all these ways, to make life simpler for developers.