Ghost Wallet

Universal Cross-Chain Stablecoin Identity Layer

Ghost enables users to receive payments through usernames, accept payments from multiple chains, and settle into Solana automatically with a mobile-first crypto UX.

Core Concept

Anyone can pay you from any chain, while you receive stablecoins on Solana.

Architecture

ghost/
├── apps/
│   ├── mobile/        # React Native APK
│   ├── web/           # Marketing + payment pages
│   └── api/           # Express backend
├── blockchain/
│   └── contracts/     # Solana smart contracts
└── packages/
    ├── shared-types/
    ├── ui/
    └── sdk/

Tech Stack

• Mobile: React Native + Expo
• Web: Next.js
• Backend: Node.js + Express
• Blockchain: Solana + Rust + Anchor
• Database: PostgreSQL + Prisma
• Cross-chain: LI.FI SDK

Setup

Prerequisites

• Node.js >= 18
• pnpm >= 8
• Rust + Solana CLI
• Anchor Framework
• PostgreSQL

Installation

# Install dependencies
pnpm install

# Setup database
cd apps/api
pnpm prisma migrate dev

# Start development
pnpm dev

Individual Apps

# API
cd apps/api && pnpm dev

# Web
cd apps/web && pnpm dev

# Mobile
cd apps/mobile && npx expo start

# Solana Contracts
cd blockchain/contracts
anchor build
anchor deploy

Environment Variables

See .env.example files in each app directory.

MVP Features

✅ Username registry ✅ Payment links ✅ Cross-chain LI.FI routing ✅ Solana settlement ✅ Mobile APK ✅ Wallet auth ✅ Transaction tracking

License

MIT