truffle-config.js

const HDWalletProvider = require("@truffle/hdwallet-provider");
require("dotenv").config();
const { PROJECT_ID, MNEMONIC } = process.env;

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 7545,
      network_id: "*", // Match any network id
      gas: 5000000,
    },

    sepolia: {
      provider: () =>
        new HDWalletProvider(
          MNEMONIC,
          `https://eth-sepolia.g.alchemy.com/v2/${PROJECT_ID}`
        ),
      network_id: 11155111, // Goerli's id
      confirmations: 2, // # of confirmations to wait between deployments. (default: 0)
      timeoutBlocks: 200, // # of blocks before a deployment times out  (minimum/default: 50)
      skipDryRun: true, // Skip dry run before migrations? (default: false for public nets )
    },

    mainnet: {
      provider: () =>
        new HDWalletProvider(
          MNEMONIC,
          `https://eth-mainnet.g.alchemy.com/v2/${PROJECT_ID_MAIN}`
        ),
      network_id: 11155111, // Goerli's id
      confirmations: 2, // # of confirmations to wait between deployments. (default: 0)
      timeoutBlocks: 200, // # of blocks before a deployment times out  (minimum/default: 50)
      skipDryRun: true, // Skip dry run before migrations? (default: false for public nets )
    },
  },
  compilers: {
    solc: {
      version: "0.8.13",
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
};