Earlier today, GitHub released their native OS X client application. As I automate everything on my Macs with Chef, I wrote a cookbook for Github for Mac.

In my chef-repo I did:

knife cookbook site install ghmac
knife cookbook upload ghmac
#... add 'recipe[ghmac]' to my workstation role ...
knife ssh role:workstation 'source .rvm/scripts/rvm && chef-client'

Since my Mac OS X workstations all have role[workstation], they all got GitHub for Mac installed automatically. I did have to do the configuration steps through the UI, and that made me cry a little, but I got over it. The application itself is quite nice.