This project is an offline app designed by service workers in Javascript. This app essentially loads the assets in the apps and serves them on demand of the user despite of network connection.
This Project has no server for serving static files. Either you can choose anything to serve files from localhost or there is quick setup for light sever you can use without writing any program.
run: light-server -s . -p 8000 -x http://localhost:9000
you should be able to see the app at localhost:8000/index.html in the browser.