If you already have React Native installed, you can skip ahead to the Tutorial.
Select the operating system on which you are installing React Native
Select the instructions
https://facebook.github.io/react-native/docs/getting-started
Ex: React Native CLI Quickstart -> macOS -> iOS for my computer.
I'm using node v13.5.0
Video setup on fresh macOS
iOS: https://www.facebook.com/rnlab.io/videos/780519085693772
Android: https://www.facebook.com/rnlab.io/videos/498816687651963
Video setup on fresh Window
Android: https://www.facebook.com/rnlab.io/videos/2784767944892377
Make sure you can run a sample React Native app then we can next step: