To be able to run project you should install it's dependencies via npm
npm i
If you want to develop server side, run in the first terminal window:
npm run watch-server-ts
Then in the second terminal window:
npm run nodemon-server
If your target is client side, then run:
npm start
And in any moment you wish to update bundle.js, run:
npm run client
Or in case if you need hot reload:
nom run client-watch
You will not be able to commit your code in case of typescript errors.