My apologies; I took the title from the name/tagline of the repo. It won't let me edit the title now, but if a mod wanted to do me the favor and make it say "git/mercurial"...

Oh, I didn't notice the tagline. HN favours the original article's title in most cases, so I suppose a tagline is about as close to a title as we have in this case.

I've corrected the tag line. Thanks for pointing that out!

Ironically Blackbox was originally for a Puppet repo that used Mercurial and only supported Git as a skunkswork project. Now it is devoid of any Puppet dependencies and is mostly used for Git, but the Mercurial support is solid. In fact, you could easily extend it to support other systems. CVS support, anyone?