Matrix, XMPP, and (now) Fluxer all have federation between servers, though they all use different protocols. I know there’s a bridge between Matrix and XMPP too
I know of XMPP, but never looked closer. A quick research to find differences and similarities lead to a post / page from Luke Smith. Didn’t heard this name for a long time… https://lukesmith.xyz/articles/matrix-vs-xmpp/
There’s also XMPP as an alternative. And Fluxer.
Matrix, XMPP, and (now) Fluxer all have federation between servers, though they all use different protocols. I know there’s a bridge between Matrix and XMPP too
I know of XMPP, but never looked closer. A quick research to find differences and similarities lead to a post / page from Luke Smith. Didn’t heard this name for a long time… https://lukesmith.xyz/articles/matrix-vs-xmpp/