All aboard the fun train.
The Web Developer 42° site is built with Node.js at it's core and as such a working Node.js install is required before you can do anything with the code in this repository.
Details regarding getting the intstallation of Node.js on your system can be found at https://github.com/joyent/node/wiki/Installation.
From within the root of your local copy of this repository, you'll need to fetch all module dependencies for this application to run.
Fortunately in Node.js this is as simple as performing the following command:
$ npm install
Once npm has retrieved all app dependencies, you can start the app by performing the following:
$ node app.js
This command will return the web address and port the application is running on.
Happy days!