3. Go inside the unzipped folder and run `npm install && npm install -g gulp`. In addition to installing development dependencies it will also install Gulp which is useful for active development.
**Important** A [workaround for CORS](https://chrome.google.com/webstore/detail/allow-control-allow-origi/nlfbmbojpeacfghkpbjhddihlkkiljbi?utm_source=chrome-app-launcher-info-dialog) is currently needed to communicate with the server.