You can clone with
HTTPS or Subversion.
I don't know Ruby (or I'd just do it), but we use KGB in Debian often for Team-work, and I'm sure once github/debian gets some use, we'd rather use KGB as well.
The dev team can be found in #kgb-devel on irc.oftc.net.
Hi, we don't use KGB so we probably won't end up building this. I'm closing this issue until someone creates a pull request for it.