Copyleft Notice

This book is Libre and follows the philosophy of Free Software: you can use this book as you like, the source is available you can redistribute this book and you can distribute your own version. That means you can print it, photocopy it, e-mail it, upload it to websites, change it, translate it, charge for it, remix it, delete bits, and draw all over it.

This book is Copyleft: if you change the book and distribute your own version, you must also pass these freedoms to its recipients.

This book uses the Creative Commons Attribution ShareAlike 4.0 International (CC BY-SA 4.0) license.

All original code snippets in this book are separately CC0 licensed, you may use them without restriction. Excerpts from scalaz and related libraries maintain their license, reproduced in full in the appendix.

The example application drone-dynamic-agents is distributed under the terms of the GPLv3: only the snippets in this book are available without restriction.