Also, there are multiple implementations of the Git API. Original "git" is the only command-line implementation but there are JGit and libgit2 libraries that ar

Also, there are multiple implementations of the Git API. Original "git" is the only command-line implementation but there are JGit and libgit2 libraries that are used in various projects. In particular, Github, Gitlab, and Bitbucket all use libgit2 for hosting Git.