To compile the sources please run following command
npm run build
If you are in development mode you might need to watch the sources and recompile them automatically. In that case you may use following command:
npm run watch
Besides this command will start BrowserSync session http://localhost:3000 which is proxying your php server. It will automatically reload the page when any asset is changed.
As currently this project is a simple prototype you may run it on your host with following command:
./artisan serve --host=127.0.0.1
Now your web-server is accessible via http://localhost:8000, but if you run watch command from the previous paragraph you should access you sources via http://localhost:3000