I’ve just found the project. And it seems very interesting take. I am adding a link to their blog entry discussion on a system to combat LLMs abuse via a web of trust.
From their site:
We envision a place where developers have ownership of their code, communities can freely self-govern and most importantly, coding can be social and fun again.
AT Protocol enables federated code-collaboration. Submit pull-requests or bug-reports to any repository hosted on any server.


Why at proto, 'tho? gitea was trying to implement Activitypub already a while ago.
Forgejo is leading the charge on that. Version 16.0 is going to have some early bits of federation functionality.
probably the firehose is easier to work with
But it also make it very hard to deploy a self hosted version !
By design, too.
I’m not sure exactly. It could be related to how the AT protocol also takes account information into federation, but I’m just speculating here