Upload the qvfs on your server and put the ids into the project.json file. Then in the command line type "npm install" to install all the required libraries and "gulp" to build and run the project.
Depending of the version of Qlik Sense you are running, most likely you will get CORS errors and some fonts may not load up. If you have valid certificates for localhost then under ./gulp-tasks/server.js comment out lines 15-18