Get the Pixelpulse source from GitHub:

git clone
cd pixelpulse

Chrome can't run Pixelpulse (without precompilation) from a file:// URL because it uses XHR to load the coffeescript source and LESS styles. (Chrome bug) You need to run a local web server to test your changes.

For example

python -m SimpleHTTPServer 8000

Then visit http://localhost:8000/pixelpulse.html

Pixelpulse uses Coffeescript and LESS which are compiled automatically when loaded from a git checkout. The in-browser versions of these tools are included in the git repository; you do not need to have the compilers installed.