1. Start
node app.js
2. Open some browser at the same pc o different if you have XD
Those browser should be in order (the same you open the url)
3. The url ¬¬": http://127.0.0.1:3000
If you do that on some pcs should be http://YOURIP:3000 (if it's on LAN your local ip)
4. In the terminal when you start node press Enter
5 :P