Angular 2 is not packaged or ready for production... but this is a todo app with it.
npm install -g gulp # Not required if you already have gulp installed globally npm install gulp gulp serve
The installation clones the Angular 2 quickstart which contains Angular and all of the dependencies to transpile from AtScript/TypeScript. The local .git folder for the quickstart is removed automatically.
The AngularFire included in this project is not a final or working version of AngularFire for Angular 2.
Check out the official Angular 2 website.