Install
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Download the ExtJS library from the offical page, create a "lib" folder inside the webapp folder and copy the ExtJS library there.
Install Node.js: http://nodejs.org/
Sencha Connect: https://github.com/senchalabs/connect
Socket.io: http://socket.io/
When everything is ready, run the server with the following command:
node server.js
Open your favorite browser and go to http://localhost:8080, you will see a blue window asking for a username and you email.
Testing the app
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You can test this application at http://crysfel.no.de/