Integrate eDeed in an afternoon.

// DEED: the coin is locked at home, the DEED appears on the other chain
await home.departCoin(to, refundTo, { value })            // one click at home
await mirror.mint(seal, block, txIndex, proof, logIndex)  // with the home chain's own seal

// BOZDUR: the DEED goes home, the coin comes back
await mirror.transfer(mirror.address, amount)             // the wallet's own Send to the token
await home.release(seal, block, txIndex, proof, logIndex) // with the other chain's own seal

// seal: built from public endpoints by web/src/lib/seal.ts — ethSeal · bnbSeal · monadSealOnDemand

// A DEED is an ERC-20 with EIP-2612 permit: take it like any token.
// (contracts/evm/src/demo/EdeedDemoNft.sol — the Market's NFT drop)
function buyWithPermit(uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
    external returns (uint256 id)
{
    try IERC20Permit(address(token)).permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
    token.safeTransferFrom(msg.sender, seller, price);  // paid in the DEED, one transaction
    _mint(msg.sender, id = ++totalMinted);              // delivered at once
}

# keeps every reader warm — run by .github/workflows/readers.yml every 15 minutes
node --experimental-strip-types deploy/deed-readers.mjs        # warm every reader
node --experimental-strip-types deploy/deed-readers.mjs --dry  # report only