Comment by zserge

I'm building my own - https://git.zserge.com/fierj - and for a few weeks it's hosting itself. Still working on patches workflow and CI, but it's quite usable already. I try to make it "minimally federated" - only threads (issues/discussions etc) are federated via ActivityPub, for PR there is old-school patches workflow, for CI just chroot and a shell script. A lightweight personal git forge in ~4KLOC. Can't say everyone should use it and can't recomment it, but building a personal forge is very realistic. Or you can run cgit as a frontend to your git remote on a server.