In less than 5 hours not only will you have a solid foundation in react native but you'll also be able to :

1. Create a robust navigation flow with react navigation v3 and v5

2. Integrate firebase for authentication, database management and uploading images

3. Integrate redux to for app wide state management

4. Learn how to use react hooks!

All while building a practical cross platform application from scratch without having any prior knowledge in mobile app development.