Matrix.org
Here are three Matrix homeservers, each with one client connected. The clients are all participating in the same Matrix room, which is synchronised across the three participating servers. Alice sends a JSON message to a room on her homeserver.
https://matrix.org/

Inside Matrix, the protocol that might finally make messaging apps interoperable
Interoperability emerged as one of the big technology trends of 2022, shining a light on open, decentralized protocols such as Matrix.
https://techcrunch.com/2022/12/30/inside-matrix-the-protocol-that-might-finally-make-messaging-apps-interoperable


Seonglae Cho