Mountainprogramming.com is a project mainly written in Ruby, it's free.
A git-based blog at mountainprogramming.com
h2. mountainprogramming.com
A git-based blog at "http://mountainprogramming.com":http://mountainprogramming.com
Also, take a look at "toto":https://github.com/cloudhead/toto, the 10 second blog-engine for hackers