Nexus Protocol 🌌

Decentralized App Store with Bonding Curve Economics on Solana.

Live Demo: https://nexus-one-drab.vercel.app

Nexus Protocol is a decentralized application marketplace where every app has its own Bonding Curve. Users can buy/sell app shares to support developers and earn revenue dividends.

🚀 Features

• Bonding Curve Pricing: Automated market maker for app shares (Price = Slope * Supply).
• Revenue Sharing (MasterChef):
  • 80% to Developers (Cash out anytime).
  • 15% to Share Holders (Real-time dividends).
  • 5% to Protocol Treasury.
• Permissionless Registration: Anyone can launch an app market with a name, domain, and icon.
• No Indexer Required: Uses getProgramAccounts (GPA) to fetch app lists directly from the chain.

📦 Deployment Info (Devnet)

• Program ID: H8Dhsv8mpe9RNqyM1TsKGEsnAH5jsQ5bxGQATACxziAz
• Admin: AoGzZ9MJzdW1ysFd3MqD96prEBJTkobcaPtvT7d2ohfs
• Cluster: Devnet

🛠 Project Structure

• /programs: Anchor smart contract (Rust)
• /app: Next.js 14 Frontend (TypeScript + Tailwind)
• /sdk: TypeScript client SDK package
• /tests: Integration tests
• /scripts: Utility scripts for Devnet interaction

⚡ Quick Start

Prerequisites

• Rust & Cargo
• Solana CLI
• Anchor CLI
• Node.js & Yarn

1. Smart Contract

yarn install
anchor build
anchor test

2. Frontend (App)

cd app
npm install
npm run dev

Visit http://localhost:3000 to interact with the protocol.

🏗 Architecture

Smart Contract Accounts

1. GlobalState: Protocol configuration (fees, admin).
2. AppMarket: Per-app state (bonding curve supply, vault balance).
3. UserPosition: User's shares and reward debt tracker.

Key Instructions

• register_app: Launch a new app market.
• buy_shares / sell_shares: Trade app shares.
• pay_for_service: Route payment ➔ Split fees ➔ Update rewards.
• claim_rewards: Withdraw dividends.
• withdraw_dev_funds: Developer withdraws their accumulated fees.
• close_app: Close the app market and reclaim rent (requires 0 supply).

📄 License

MIT