ForgeFed is a federation protocol for software forges and code collaboration tools for the software development lifecycle and ecosystem. This includes repository hosting websites, issue trackers, code review applications, and more. ForgeFed provides a common substrate for people to create interoperable code collaboration websites and applications.
Indeed! Also see ForgeFed:
It’s based on ActivityPub, the same protocol that powers Lemmy, Mastodon, and Pixelfed.