Smart Contract whitelist implementation with primitive storage

WhitelistPrimitive.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.11;

import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract PrimitiveWhiteList is ERC721Enumerable, Ownable {

  uint256 public constant MINT_PRICE = 0.1 ether;
  mapping(address => bool) public whitelist;
  
  constructor() ERC721("Primitive Whitelist", "PW") {}
  
  function whitelistMint(uint256 amount) external payable {
    require(msg.value == amount * MINT_PRICE, "Ether send below price");
    require(whitelist[msg.sender], "Not in whitelist");
    
    // start minting
    uint256 currentSupply = totalSupply();

    for (uint256 i = 1; i <= amount; i++) {
        _safeMint(msg.sender, currentSupply + i);
    }
  }
  
  function addWhitelist(address _newEntry) external onlyOwner {
    whitelist[_newEntry] = true;
  }
  
  function removeWhitelist(address _newEntry) external onlyOwner {
    require(whitelist[_newEntry], "Previous not in whitelist");
    whitelist[_newEntry] = false;
  }

}