Developer Guide

blockmsg/
├── packages/
│   ├── hardhat/           # Smart contracts
│   │   ├── contracts/     # Solidity contracts
│   │   ├── deploy/        # Deployment scripts
│   │   └── test/          # Contract tests
│   └── nextjs/            # Frontend application
│       ├── app/           # Next.js pages
│       ├── components/    # React components
│       └── hooks/         # Custom hooks
└── docs/                  # This documentation

// Key functions
function sendDM(
    address _to,
    externalEuint32[] calldata _encryptedContent,
    bytes[] calldata _proofs,
    uint256 _expiresInSeconds
) external;

function dmMessages(
    address _user1,
    address _user2,
    uint256 _index
) external view returns (DirectMessage memory);

# Deploy to Ethereum Sepolia testnet
cd packages/hardhat
yarn deploy --network sepolia

# Verify contract
yarn verify --network sepolia

cd packages/hardhat
yarn test

cd packages/nextjs
yarn dev

yarn deploy --network zama