It's a running a fork (codeberg specific) of a fork of gitea called forgejo (https://codeberg.org/forgejo/forgejo https://codeberg.org/forgejo/forgejo) so it's

It's a running a fork (codeberg specific) of a fork of gitea called forgejo (https://codeberg.org/forgejo/forgejo https://codeberg.org/forgejo/forgejo) so it's not surprising. The people behind it were a bit miffed at Gitea doing some questionable commercial endeavors in their view and also not dog-fooding Gitea for Gitea.