Make sure you have NodeJS installed
open a terminal, and move to a directory for cloning the repo.
git clone https://github.com/killface-org/angular-arduino.git
cd angular-arduino
npm install
Build the LCD circuit from the magic eight ball project, and instead of the acceloramter add three LED's, connected to pins 8,9, and 10. You will then need to make some slight modifications to the source code, mainly things like setting ip addresses for connections, and maybe adjusting some of the PIN constants.
Then open up a couple of terminals.
cd server
node web-server.js
//in a seperate shell (terminal)
node arduino-socket-server.js