This article is part of a series. For more information, see the synopsis and index of articles in this series.
In the previous article, we got Linux up and running on Windows using a virtual machine. In this part, we'll install Ruby and everything we'll need to create a usable development environment. This article is very distro-specific, and is written for Ubuntu. If you're using a different distro, or even a different version of Ubuntu than 13.04, these instructions may not work.