1. Go to this page and download the library: Download irishtitan/handshake library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
irishtitan / handshake example snippets
use Magento\Catalog\Model\ProductFactory;
use IrishTitan\Handshake\Core\App;
$productFactory = App::make(ProductFactory::class);