To get the most out of this book

You're going to need a computer. If you intend to work along with the examples, the easiest way to do so is by utilizing Vagrant, which is software for building portable development environments programmatically.

At the start of each chapter with working code, you'll find a Vagrantfile entry. This can be downloaded from the links provided later in this preface, but it can also be typed out if you prefer.

For the best experience, I'd recommend a computer with at least four cores and preferably 8 GB of RAM, though you might be able to tweak each entry for your own purposes. 

This book assumes basic knowledge of moving around a Linux filesystem using the command line.