Welcome to MacRuby’s documentation center. Here you will find the information you need to get up and running and building OS X applications with MacRuby in no time. If you have not read the Introductory Tutorial, its a great way to get started.
If you are wondering why in the world MacRuby exists you can read that in the Why MacRuby? page. If you want documentation on HotCocoa you can find it here. You can catch up on the latest news by following the MacRuby Blog.
Below are a list of tutorials and recipes for MacRuby. Tutorials are the longest content and delve deep on a particular area. Recipes are short and specific examples of how to accomplish something with MacRuby.
In addition to the documentation available here, MacRuby team member, Matt Aimonetti keeps a HTML version of the manuscript of his O’Reilly book online and available for free at this url.