I have been debating doing this on April Fools' Day, but ignoring that, and celebrating the 40th anniversary of Apple, here goes:
d3, the package deployment & patch management system for Casper, which I presented at JNUC 2012, is now available as an open-source project. Including PuppyTime.
To answer Rich Trouton's question after my presentation, 3.5 years later: Yes, it is open-sourced.
http://pixaranimationstudios.github.io/depot3/index.html
As of this writing it has never been used outside of Pixar, so I make no guarantees. But I've done my best and will help as much as possible if you decide to use it.
Happy April First!
