Boxen is a framework for managing almost every aspect of your Mac. We built a massive standard library of Puppet modules optimized for Boxen to manage everything from running MySQL to installing Minecraft. We designed Boxen with teams that work like GitHub in mind. Boxen automatically updates itself every run and opens and closes GitHub Issues as problems arise and get fixed. With Boxen, we treat our development environments with the same care we give production: we test our code and rely on Continuous Integration to deploy changes.
(Full Story: https://github.com/blog/1345-introducing-boxen )