This is the dream right? Self host all your repos but still have contact with the community. The other alternative forges like forejo are cool but feel like simply turning the clock back on GitHub.
Codeberg is the (Github-alike) central forgejo server, where the team develops and which is also available for general open source coding needs. ForgeFed issues are tracked on Codeberg, so they already show their interest.
Automatic replication so that 3 copies are always available through the network, even in 50 years.