Authentication and role-based authorization for React Native apps can be easily implemented, for example in conjunction with Keycloak and the Authorization Code Flow (with Proof Key for Code Exchange) of OAuth 2.0.

In lectures and courses, I very often create sample projects in which I like to use the support of a linter and code formatter. For this purpose, I have created a small shell script that performs a number of useful tasks after a new Expo app has been created.