# Deploy with Foundry

Foundry is a fast, portable, and modular toolkit for Ethereum application development written in Rust. Since Omega is fully EVM-compatible, deploying contracts using Foundry is seamless and developer-friendly.

***

### 🚀 Why Use Foundry?

* ⚡ **Blazing-fast** compilation and deployment
* ✅ **Integrated testing**, fuzzing, and scripting
* 🧪 Excellent for **CI/CD pipelines**
* 🛠️ Works great with **Solidity 0.8+**

***

### 📦 Prerequisites

Install Foundry if you haven’t already:

```bash
curl -L https://foundry.paradigm.xyz | bash
foundryup
```

***

### 🔧 Configure Omega Network

In your project root, create or update `.env`:

```env
RPC_URL=https://0x4e454228.rpc.aurora-cloud.dev
PRIVATE_KEY=your_private_key
CHAIN_ID=1313161768
```

Update your `foundry.toml`:

```toml
[profile.default]
src = 'src'
out = 'out'
libs = ['lib']
rpc_endpoints = { omega = "${RPC_URL}" }
```

***

### ✍️ Example: Simple Contract

Create a contract in `src/Counter.sol`:

```solidity
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract Counter {
    uint256 public count;

    function increment() external {
        count += 1;
    }
}
```

***

### 🧪 Compile and Deploy

Compile the contract:

```bash
forge build
```

Deploy using `cast send`:

```bash
cast send --create ./out/Counter.sol/Counter.json \
  --rpc-url $RPC_URL \
  --private-key $PRIVATE_KEY \
  --chain-id $CHAIN_ID
```

***

### 💡 Post-Deployment Tips

* ✅ Use `cast call` to read state
* 🚀 Use `cast send` to interact with your contract
* 💰 Make sure your deployer wallet has $OMEGA for gas

Example read:

```bash
cast call <CONTRACT_ADDRESS> "count()" --rpc-url $RPC_URL
```

***

### 🔗 Useful Links

* 🔍 [Omega Explorer](https://0x4e454228.explorer.aurora-cloud.dev)
* 🌐 [Omega RPC](https://0x4e454228.rpc.aurora-cloud.dev)
* 📘 [Foundry Book](https://book.getfoundry.sh/)


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