git clone git@github.com:strathmeyer/ember-selector.git
cd ember-selector
bower install
python -m SimpleHTTPServer 8000
Point your browser to http://localhost:8000/
sudo npm install -g coffee-script
coffee -wc -o js/ coffeescript/
You can now edit the .coffee files and .js files will be generated.
If you add a new .coffee file, you'll have to restart the command.