So I started using GitHub for a side project and discovered their very cool feature of service hooks. A service hook allows a repository administrator to setup a callback to another service when a commit is made to the repository. For example it can send an email, or chat a message via Jabber. Now continuous integration servers, like TeamCity , can poll source control systems every few minutes to see if any changes have been committed. But wouldn't it be more efficient to use a service hook to trigger a build? Looking at GitHub's service hooks, there wasn't one already available to callback a TeamCity server, but right on that same page was a link to the open source repository for GitHub Service Hooks . They "eat their own dogfood" so to speak and make it very easy to contribute new service hooks back to them. So I took an evening, did my first Ruby coding in a while which included more time getting Ruby setup and working on my Macbook than actually coding....