Sourcegraph is also working on a similar service.
Also: unless you've okayed the name with the Git folks, you're going to need to change the name. Git is trademarked, and they are no longer allowing just anyone to use the mark without first seeking permission. (GitHub, GitLab, and others have been grandfathered in.)
See https://public-inbox.org/git/20170202022655.2jwvudhvo4hmueaw...