Solmate: Gas optimized smart contract building blocks

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {ERC20} from "solmate/tokens/ERC20.sol";
import {Owned} from "solmate/auth/Owned.sol";

contract MyToken is ERC20, Owned {
    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        uint256 _initialSupply
    ) ERC20(_name, _symbol, _decimals) Owned(msg.sender) {
        _mint(msg.sender, _initialSupply);
    }

    function mint(address to, uint256 amount) external onlyOwner {
        _mint(to, amount);
    }

    function burn(address from, uint256 amount) external onlyOwner {
        _burn(from, amount);
    }

    // Override transfer to add custom logic if needed
    function transfer(address to, uint256 amount) public override returns (bool) {
        require(to != address(0), "Cannot transfer to zero address");
        return super.transfer(to, amount);
    }
}