This project is the code for feedjira.com, if you were looking for the actual gem, you can find that here.
This site is built using Middleman, see that project for complete documentation, but the basics are:
$ middleman server
This will start a server running at http://localhost:4567.
$ middleman build
This will build the site into the build folder.
This content was written by Jon Allured and the fabulous design was done by Daniel Ariza.