'For a long time I have dreamt of a "magical script" that could download packages of some other distro, cut them right down to Puppy-size, then build a Puppy Linux live-CD -- and do all of this totally automatically.'
Woof, the Puppy builder
A personal, tiny, and very simple version control system for managing the Woof project:
Tutorial: Building a Custom Puppy with Woof
Upup Ubuntu Puppy