🚀 LemiPay — Smart Contracts MVP (Stellar Testnet)

LemiPay is a decentralized group treasury system built on Stellar Soroban.

This MVP demonstrates how groups can coordinate funds transparently and execute programmable treasury logic on-chain.

Built for rapid validation, clarity, and real blockchain interaction.

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🌍 Vision

LemiPay enables:

• 🧑‍🤝‍🧑 Group-based fund coordination
• 🔐 Trustless treasury management
• ⚙️ Programmable execution logic

This repository contains the smart contracts powering the MVP.

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🏗 Architecture

The system is composed of two main contracts:

🟡 TreasuryContract

Responsible for:

• Holding funds
• Managing deposits
• Executing treasury actions
• Enforcing rules

🔵 GroupContract

Responsible for:

• Creating and managing groups
• Linking groups to a treasury
• Tracking group state

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📂 Project Structure

lemipay-contracts/
│
├── Cargo.toml (workspace)
├── treasury/
│   ├── Cargo.toml
│   └── src/lib.rs
└── group/
    ├── Cargo.toml
    └── src/lib.rs

This repository uses a Cargo workspace to manage multiple contracts cleanly.

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⚙️ Requirements

• Rust (latest stable)
• Soroban CLI
• Stellar testnet account funded
• wasm target installed

Install wasm target:

rustup target add wasm32-unknown-unknown

Build Contracts

From the root directory:

cargo build --target wasm32-unknown-unknown -p treasury --release
cargo build --target wasm32-unknown-unknown -p group --release

Compiled WASM files will be located in:

target/wasm32-unknown-unknown/release/

🚀 Deploy to Stellar Testnet

Example (replace paths and keys accordingly):

soroban contract deploy \
  --wasm target/wasm32-unknown-unknown/release/treasury.wasm \
  --source <YOUR_SECRET_KEY> \
  --network testnet

Repeat for group.wasm.

Save deployed contract IDs for frontend interaction.

🔁 Example Flow (MVP Demo)

1. Deploy TreasuryContract
2. Deploy GroupContract
3. Create a group
4. Deposit funds into treasury
5. Execute treasury action
6. Verify on-chain state

This flow is used in the live demo presentation.

🎯 MVP Scope

This is a minimal implementation focused on:

• Demonstrating real on-chain interaction
• Validating group treasury coordination
• Enabling live demo execution

Production features such as security hardening, governance layers, and advanced validation are intentionally out of scope for this MVP.

🧠 Why Stellar Soroban?

• Fast execution
• Low fees
• Native asset support
• Built for financial infrastructure

👥 Team

LemiPay Core Team

⚠️ Disclaimer

This code is experimental and built for demonstration purposes. Do not use in production environments.