@randulo From my understanding of the AT-protocol that is the idea. It seems to work similarly to ActivityPub with some design differences and a lot of missing features not implemented yet.
One thing that has me skeptical is how they aren't testing multiple servers or even distributing alpha/beta versions of server software for people to self-host to try and find bugs. If the project is intended to be open source, it doesn't really follow in that #foss spirit.
(CORRECTION: There is a sandbox open source version that anyone can try from their GitHub.)