Forgejo (the Codeberg-maintained Gitea fork) is essentially becoming an EU-based community of familiar compatible alternatives to GitHub.

It's not quite a federated/decentralised platform in the traditional sense, but the decentralised nature of Git makes it a close enough equivalent, & the fact they're built upon a shared platform makes them very easy to navigate. So setting up public instances for each government or org makes a lot of sense.

Codeberg even maintains a list of alternative pubic Forgejo instances[0], some of which are explicitly pro-AI.

[0] https://codeberg.org/forgejo-contrib/delightful-forgejo#publ...