CruiseControl.rb is a continuous integration tool. Its basic purpose in life is to alert members of a software project when one of them checks something into source control that breaks the build.
CC.rb is easy to install, pleasant to use and simple to hack. It’s written in Ruby.
Here is a public CruiseControl.rb instance building itself and some other open-source projects.
Next step: Download CruiseControl.rb and get started.