git-repo is repo reimplemented in Golang and with many other features. Using git-repo, a developer can create code reviews (pull requests) from client side directly.
A way to include single files or directories from large git
repositories. Think of it as a crappy clone of git subtree, but with
the ability to hand-pick out what you want.
git-cdn is a git mirror that you can place near your CI workers and developers.
It acts as a git+http(s) proxy, reducing WAN usage and accelerating git access for large repositories.