School Book Purchase App

I'm looking to develop an Android app for schools, where students can purchase books from my company from home. Each school will feature a unique selection of books.

Key Features:
- School-based user authentication: Students can only access the app through their respective school credentials.
- Payment Integration: Must support GPay, PhonePe, and any QR code payment methods.
- Unique Book Listings: Each school should have a distinct catalog of books.

Ideal Skills and Experience:
- Android app development expertise
- Experience with payment gateway integration
- Familiarity with user authentication systems
- UI/UX design for a student-friendly interface