A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of “federation” and “universe”. It is a common, informal name for a federation of social network servers whose main purpose is microblogging, the sharing of short, public messages.
Getting started on Fediverse;
For devs;
Friendica integrates both with Diaspora and ActivityPub.
This recently created image (taken from Fediverse on Wikipedia) has a good overview: