Good free software is a worthy goal in itself, and I hope that readers who come looking for ways to achieve it will be satisfied with what they find here. But beyond that I also hope to convey something of the sheer pleasure to be had from working with a motivated team of open source developers, and from interacting with users in the wonderfully direct way that open source encourages. Participating in a successful free software project is fun, and ultimately that’s what keeps the whole system going.

— Karl Fogel, Producing Open Source Software