Prerequisites

Installation of Node, CoffeeScript and Compass should be quite easy, so just stick to these instructions and you'll be alright.

1. Node.js

Download Node using the installer from nodejs.org which also installs npm

2. CoffeeScript

You install CoffeeScript with npm (globally) like so: $ npm install --global coffee-script

3. Compass

Compass is a bit tricky because you'll need Ruby on your system. On Linux and Mac, just use your package manager. On Windows use the Ruby Installer for Windows

When you're done installing Ruby, run $ gem update --system && gem install compass