Web3 Fullstack Packaged Build

project-name/
├── contracts/
│   ├── interfaces/
│   ├── core/
│   ├── libraries/
│   └── deployment/
├── frontend/
│   ├── src/
│   │   ├── components/
│   │   ├── hooks/
│   │   ├── config/
│   │   └── utils/
│   └── public/
├── scripts/
│   ├── deploy/
│   └── test/
├── zk-circuits/
└── docs/

mkdir -p contracts/{interfaces,core,libraries,deployment}
mkdir -p frontend/src/{components,hooks,config,utils}
mkdir -p frontend/public
mkdir -p scripts/{deploy,test}
mkdir -p zk-circuits docs

// contracts/interfaces/IToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IToken {
    function transfer(address to, uint256 amount) external returns (bool);
    function balanceOf(address account) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
}

// contracts/core/PrivatePool.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../interfaces/IToken.sol";
import "../libraries/SafeMath.sol";

contract PrivatePool {
    using SafeMath for uint256;
    
    IToken public token;
    mapping(address => uint256) private balances;
    
    constructor(address _token) {
        token = IToken(_token);
    }
    
    function deposit(uint256 amount) external {
        token.transferFrom(msg.sender, address(this), amount);
        balances[msg.sender] = balances[msg.sender].add(amount);
    }
}

export const networks = {
  mainnet: {
    chainId: 1,
    rpcUrl: process.env.REACT_APP_MAINNET_RPC,
    explorer: 'https://etherscan.io'
  },
  testnet: {
    chainId: 5,
    rpcUrl: process.env.REACT_APP_TESTNET_RPC,
    explorer: 'https://goerli.etherscan.io'
  }
};

export const contractAddresses = {
  PrivatePool: process.env.REACT_APP_PRIVATE_POOL_ADDRESS,
  Token: process.env.REACT_APP_TOKEN_ADDRESS
};

// Import compiled contract ABIs here
import PrivatePoolABI from './PrivatePool.json';
export { PrivatePoolABI };

// frontend/src/components/DepositForm.jsx
import { useState } from 'react';
import { useContractWrite } from 'wagmi';
import { PrivatePoolABI } from '../config/abis';

export function DepositForm({ contractAddress, tokenAddress }) {
  const [amount, setAmount] = useState('');
  
  const { write: deposit } = useContractWrite({
    address: contractAddress,
    abi: PrivatePoolABI,
    functionName: 'deposit',
    args: [BigInt(amount)]
  });

  return (
    <form onSubmit={(e) => { e.preventDefault(); deposit(); }}>
      <input 
        value={amount} 
        onChange={(e) => setAmount(e.target.value)}
        placeholder="Amount"
      />
      <button type="submit">Deposit</button>
    </form>
  );
}

// scripts/deploy/01_deploy_token.js
async function main() {
  const Token = await ethers.getContractFactory("Token");
  const token = await Token.deploy();
  await token.deployed();
  console.log("Token deployed to:", token.address);
  
  // Save address for frontend config
  fs.writeFileSync(
    'frontend/.env',
    `REACT_APP_TOKEN_ADDRESS=${token.address}\n`,
    { flag: 'a' }
  );
}