# install node.js(MAC OS). Or you can see: http://nodejs.org/download/
brew install node
# you might need to add the following line to your .bash_profile or .bashrc, so that npm executables are found.
export PATH=$PATH:/usr/local/share/npm/bin
# if you did add it, then
source .bash_profile
# node install
npm install
# install dependance of with bower
bower install
# open gulp server
gulp server
Open you browser and type http://localhost:8000/app.