Digital Goods E-Commerce App & Portal -- 2

I’m ready to launch a small-to-mid-scale store that sells downloadable items only—no physical shipping, no service bookings. I need a unified solution made up of:

• A responsive web portal that opens smoothly in any modern browser
• A native Android app that mirrors the same features and database

Core requirements
1. User accounts with email / social sign-up, profile management and a secure “My Library” section.
2. A digital-product delivery system that instantly assigns a unique, expiring download link after each successful purchase—and lets customers re-download from their library whenever they log in.

Scope I expect
– Clean, modern UI (you’re free to recommend React, Flutter, Kotlin, Next.js, etc.)
– Shared backend (Node, Laravel, Django or similar) with REST or GraphQL API so both front ends stay in sync
– Admin dashboard where I can upload files, set prices, manage users and view basic sales analytics
– Deployment walkthrough to get the web portal on my preferred host and the APK ready for Google Play internal testing
– Lightweight documentation covering tech stack, setup and how to add new products

Nice-to-haves (not mandatory, but flag if you can add them quickly): payment gateway integration, coupon codes, basic push notifications.

Hand-over will include all source code, build instructions and a short video or call demonstrating the major flows. If you’ve built something similar, links or screenshots will help me move faster on awarding the work.