The AT Protocol that powers BlueSky (distributed Twitter) is interesting.

https://steveklabnik.com/writing/how-does-bluesky-work

Especially the ability to use domain names as identifiers and the ability to move between servers while maintaining that identifier.

https://bsky.app/profile/coverfire.com

I’m not sure I have need for micro-blogging any more but perhaps a non-centralized version could be better.