Nodejs server will be running on windows and when hit at particular url windows can be shutdown, put to sleep or hibernate etc New functinality of changing ip address is added. Now no need to manually type ip address in browser of mobile because now you can you use QR CODE reader which will give you the ip address.
Just download node-bob project and replace this app folder with app folder in node-bob project than just build and you are good to go.
Becuase flow is made easy with QR CODE code will give you the ip address which will be used in browser to access the application.