How do Git remotes work and how can I self-host one?

Git remotes are references to remote repositories that allow you to collaborate with others and manage different versions of your codebase. When you clone a repository, Git automatically sets up a remote named 'origin' that points to the original repository. You can add more remotes to track different repositories. To self-host your own Git remote, you can use Git-compatible server software like Gitolite or Gitea, or simply use Git's built-in support for SSH or HTTP(S) protocols to serve your repository.