If I like having a web UI means you can do without it, git doesn’t require anything fancy. I just have my git repos on my server and push/pull from my workstations over SSH. It doesn’t require anything but git & SSH on the server. You can even collaborate with others by giving them a locked down account that can’t do anything other then interact with the git repo.

This approach certainly isn’t for everyone. The web UI can be super handy, but if you just want your own self-hosted git server, keep it simple.