This is Github open-sourcing an internal tool, which is something they have a long history of doing (Jekyll, Resque, Hubot). Most dev shops have a whole bunch

This is Github open-sourcing an internal tool, which is something they have a long history of doing (Jekyll, Resque, Hubot). Most dev shops have a whole bunch of things like this -- assorted libraries and internal tools that are 80-90% of the way to being somewhat useful to the public. It's fantastic that Github provides the time/space/expectation for employees to finish them.