A Genshin Impact-themed gacha merchandise platform buy, collect, and manage rare weapons using an in-game coin system.

• Shop — browse weapons by rarity & price, purchase with coins
• Inventory — view collected weapons you own
• Weapon Detail — full weapon info (stats, passive, ascension material)
• Notifications — transaction and update notifications
• Profile — user account management
• Admin Panel — manage weapons (create, edit, delete)
• Auth — login via email/password and Google Sign-In
• Dark / Light Mode — adaptive theme, default dark

GachaMerch (Flutter) ──────► GachaMerch-BE (Express) ──────► PostgreSQL
Mobile App REST API Database

Backend — Express.js v5, Prisma ORM, JWT + Google OAuth, Swagger UI (/api/docs)

Frontend — Flutter 3.8+, Dart, adaptive theming, Android

See the setup guide in each repository:

• Backend Setup
• Mobile Setup