#Codeberg is a developer platform based on the #Forgejo code forge software.
#ForgeFed is a protocol specification, an extension of #ActivityPub.
Any #forge can implement ForgeFed and become part of the #fediverse, as it were. This allows devs to interact with projects on remote forge servers as if they were part of their local hub. They can create issues, discuss them, create PR's, define teams.
The social network #Github provides to discover #FOSS projects is now federated.