I would still be interested if anyone had experience migrating from GitHub including a big CI pipeline. Codeberg doesn't have the infrastructure. Every migration story I saw either a) had no/very little CI or b) was a big enough project like Zig or Gentoo to have funding and their own infra to run CI on.

If I look at the current bill on GitHub I would have to pay for action runs if it wasn't for "it's free for public open-source projects" it'd come to $300-400 monthly. There is no reality in which I could afford the same CI pipelines if I had to actually rent hardware at that price from a cloud, nor can I just buy workstations and put them at my house.