I couldn't help noticing Gogs is hosted on GitHub...
https://github.com/gogits/gogs https://github.com/gogits/gogsHowever, it is the "home of developers" right now, and they probably would prefer a low barrier to entry for people to get involved.
I totally understand why people host open source projects on GitHub.com, most open source developers have accounts there so it lowers the barrier to contributing.
BTW If you host it on GitLab.com people can login with their GitHub account.