Just your average quirky thigh-high socks enjoyer programmer. :3
They need to be interoperable. For example if you’re on Signal but want to chat with your parents who are on FB Messenger, then you would be able to chat to them via Signal.
You can envision each chat apps as different instances and these communicate to eachother with a common protocol, just like ActivityPub in Lemmy.
Good News channel from YT: https://www.youtube.com/watch?v=ANeE8s657UQ
The thumbnails are definitely attention grabbing but the content is genuine. It makes me a bit happier watching him