Design annotations

http://goo.gl/mT34M

Installing the server stack

sudo apt-get install nodejs npm
npm install socket.io

Running the server

node server-cc.js

Running the client

Open public/index.html in your browser.

Watching some action

You can open public/index.html on two tabs. The first tab will control the blue caps, and the second one the red ones. Use the browser console to view feedback messages sent by the server.