npm installnpm start- visit
http://localhost:8080/
This app is set up for deployment to Heroku!
Heroku will follow the postinstall command in your package.json and compile assets with webpack.prod.config.js. It runs the Express web server in server.js. You'll notice there's a special section set up for running in development.
If you've never deployed a Node app to Heroku (or just need a refresher), they have a really great walkthrough here.