hardhat.config.js

require("@nomiclabs/hardhat-waffle");

const fs = require('fs');
// const privateKey = fs.readFileSync(".secret").toString().trim();

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async () => {
  const accounts = await ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
module.exports = {
  defaultNetwork: 'hardhat',
  networks: {
    hardhat: {
      gas: 12000000,
      blockGasLimit: 0x1fffffffffffff,
      allowUnlimitedContractSize: true,
      timeout: 1800000
    },
	testnet: {
		url: `https://data-seed-prebsc-2-s1.binance.org:8545/`,
		// accounts: [privateKey]
	},
  },
  solidity: {
    version: "0.6.12",
    settings: {
      optimizer: {
        enabled: true,
        runs: 200
      }
    }
  }
};