It's a [Guard](http://github.com/guard/guard) for the [Rocco](http://github.com/rtomayko/rocco) documentation system! guard 'rocco' do watch(%r{app/.*\.(rb|coffee)}) watch(%r{lib/.*\.rb}) end Only one option for now: * `:dir` specifies the output dir (default `doc`) `gem install guard-rocco` or Bundle it up with `gem 'guard-rocco'`. Then `guard init rocco`. Yeah!