Maybe you could add support for Gitea? It’s a pretty handy way to slap an API in front of git and it’s much simpler to self host than GitLab.
It's neat to be able to transplant a CMS on top of other services that don't necessarily deploy by CI pipes, I made a DAV plugin(basic auth) for Netlify (back before the forks) so as long as a server supported listing(only DAV dependency really), GET, PUT and DELETE you could just plunk down the CMS files somewhere and point to the DAV share.