I know this is going to sound silly, but how does one setup their own git server?
It's literally far more trivial than you may think. (At least if you already own a VPS or a dedicated server.)
Basically, (1), add a git user, (2), configure .ssh/authorized_keys, and that's basically it!
To add a bit more security, you may also want to edit /etc/shells and add git-shell as a login shell, then change git user to use that shell, but that's entirely optional (and it'd actually make it less trivial to create add extra repos, so, for a single-user repos, you may want to delay doing that).
In all, the entire set of official instructions can be printed on like a single double-sided Letter / A4 piece of paper.
P.S. Actually, I guess it's 3 single-sided pages, but that's only because you'd be printing the example SSH key twice, which takes a quarter of an A4 each time, thus, the entire official instructions take almost 3 single-sided pages total.
Optionally, public repos: Set-up git-daemon in some /var directoy and do the git init dance there. Also touch the git-daemon-export-ok file to whitelist each repo for public serving. chown the repository directory to your own user so you can write there freely, while git-dameon can read and serve the contents to the world.
Everything is just dumping UI over a file system and executing command line stuff.
If you want that too take a look at forgejo or gitlab, both of which I use for self hosting. The setup is similar to setting up any other server that requires user accounts, a database, and exposed ports.
sudo apt-get install git
sudo dnf install git
(Etc)
In other words, the server is sshd.
Enjoy!
My question was posed because I believe the post did not read the original request carefully.
My experience is managing over a hundred thousand vms at once across multiple countries, and have managed large fleets of tens of thousands or hundreds thousand+ for decades. This is old hat.
My desktop runs Linux. My laptop runs Linux. My phone runs Linux. The phone is the only one without a running SSH server. I'm pretty sure the openssh server is also a default package in Fedora Workstation, it's just got the service disabled by default unless you flick on a check box in the Gnome window.
Windows Server also supports SSH, and has several shell options.
I couldn't answer for any Apple device.
I guess my experience is narrow, though.
Hey, how many git servers do you know not running Linux? That's an interesting question!
Edit: Curious what you think both GitLab and GitHub run on, and if those have ssh enabled or not.
ssh.
Why?
Certificate expirations suck.