> For the complete documentation index, see [llms.txt](https://docs.tropicalwater.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tropicalwater.xyz/architecture/development-quick-start.md).

# Development Quick Start

### Prerequisites

* [Foundry](https://getfoundry.sh/) — `forge`, `cast`, `anvil`
* Solidity `^0.8.24`

### Setup

```bash
git clone <repository-url>
cd opportunity-vault
git submodule update --init --recursive
forge install
forge build
```

### Run Tests

```bash

# All 507 tests
forge test

# Specific suite with verbosity
forge test --match-path "test/OpportunityOVault.broadcast.t.sol" -vvv

# Coverage report
forge coverage --report summary
```

**Test suite: 507 tests across 22 files — 100% pass, \~99% line coverage.**

### Basic Integration Example

```solidity
// 1. Approve vault to spend USDC
IERC20(USDC).approve(vaultAddress, depositAmount);

// 2. Deposit
uint256 shares = vault.deposit(depositAmount, msg.sender);

// 3a. Queue-based redemption (no fee, yield frozen at request)
vault.requestRedemption(shares);
// ... wait lockupPeriod ...
uint256 assets = vault.completeRedemption(receiver);

// 3b. Early redemption (instant, with fee)
(uint256 preview, uint256 fee) = vault.previewRedeemEarly(shares);
uint256 assets = vault.redeemEarly(shares, receiver, preview * 99 / 100); // 1% slippage tolerance

// 4. Bridge shares to another chain (OFT)
SendParam memory params = SendParam({
    dstEid: MONAD_EID,
    to: bytes32(uint256(uint160(receiver))),
    amountLD: shares,
    minAmountLD: shares,
    extraOptions: "",
    composeMsg: "",
    oftCmd: ""
});
MessagingFee memory fee = vault.quoteSend(params, false);
vault.send{value: fee.nativeFee}(params, fee, payable(msg.sender));
```

### Environment Configuration

```bash
cp .env.example .env

# Required for deployment:

# PRIVATE_KEY=<deployer key>

# RPC_ETHEREUM=<RPC URL>

# RPC_MONAD=<RPC URL>
```

### Deployment

```bash

# 2-chain: Ethereum (source) + Monad (destination)
forge script script/DeployEthereumMonad.s.sol --profile deploy --broadcast

# 4-chain: Polygon (source) + Arbitrum + Ethereum + Monad
forge script script/V3PolygonToArbitrumEthereumMonad.s.sol --profile deploy --broadcast
```

***

*Contract: `src/OpportunityOVault.sol` (768 lines, Solidity ^0.8.24) · Audit prep branch: `audit/prep-2026-06` · Commit: `09444edd4ed415a2e2539020028037919f6150af`*


---

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