NFTLoremIpsum.sol

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

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

contract NFTLoremIpsum is ERC721, Ownable {
  constructor() ERC721("Lorem Ipsum", "NFTLI") {}
  
  uint public totalSupply;
  string private _baseTokenURI;

  function mint(address to, uint tokenId) external {
    totalSupply++;
    _safeMint(to, tokenId);
  }
  
  function adminMint(address[] calldata to, uint[] calldata tokenIds) external onlyOwner {
    require(to.length == tokenIds.length, "must be same length");
    totalSupply += to.length;
    for (uint i;i<to.length;i++) {
      _safeMint(to[i], tokenIds[i]);
    }
  }
  
  // Configure Token URI base path.

  // See tokenURI implementation https://github.com/OpenZeppelin/openzeppelin-contracts/blob/57725120581e27ec469e1c7e497a4008aafff818/contracts/token/ERC721/ERC721.sol#L93
  // Essentially the default tokenURI is _baseTokenURI + tokenId
  // therefore your metadata URIs should be something like https://arweave.net/<hash>/<tokenId>
  // where https://arweave.net/<hash> (your _baseTokenURI) is the same for every token. 

  function setBaseURI(string calldata baseURI) external onlyOwner {
    _baseTokenURI = baseURI;
  }

  function _baseURI() internal view override returns (string memory) {
    return _baseTokenURI;
  }
}