Another option is using the package `npx` which doesn't require you to install the package `create-react-app` before using it. So you can use it without installing it which is helpful for the future not to have too many packages installed on your machine
This will set up your development environment so that you can use the latest JavaScript features, provide a nice developer experience, and optimize your app for production.
`npm start` will start up a development server which allows live reloading<sup>3</sup>.
After you finish your project and are ready to deploy your App to production, you can just use
`npm run build`
to create an optimized build of your app in the `build`folder.