In this video, we will start from scratch, creating a new Expo project, and adding user authentication including Sign In, Sign Up, and two factor authentication.

To see how to configure the AWS Mobile CLI, watch this video: https://www.youtube.com/watch?v=MpugaNKtw3k
AWS Mobile: https://aws.amazon.com/mobile/
AWS Amplify: https://github.com/aws/aws-amplify
Source code: https://github.com/dabit3/expo-user-authentication