Install polymer-cli:
npm install -g polymer-cli
Need at least v0.3.0
git clone https://github.com/Polymer/shop.git
cd shop
bower install
polymer serve
polymer test
polymer build
This command serves the minified version of the app in an unbundled state, as it would be served by a push-compatible server:
polymer serve build/unbundled
This command serves the minified version of the app generated using fragment bundling:
polymer serve build/bundled