Thanks for posting this - you can find the repo for the git-bridge at <a href="https://github.com/winstonli/writelatex-git-bridge" rel="nofollow">https://github.com/winstonli/writelatex-git-bridge</a> - it was created by a group of Imperial College London CS students who worked with us over the past few months (I'm one of Overleaf's founders).