> ...We've had conversations with people about GitLab, Gitea, BitBucket, SourceHut and others and we'd like to support them, and self hosted, in time...

I would guess that *when* you achieve support for those other (and especially self-hosted), then you'd up your game massively in the eyes of the open source software community. Of course....i acknowledge that this is not a small nor easy nor fast thing to achieve. ;-) Best of luck, and i really love this idea that you have! (I'll be joining soon)