Don't be afraid. When it comes to local testing of WordPress (WP), you might immediately think of setting up a complex PHP environment. However, it doesn't have to be that complicated. Here, I recommend using WOS Portable. Simply put, WOS is a pre-packaged PHP environment that allows you to install PHP-based programs within it. This means it's not just for WP; any program you're interested in trying out can be tested locally in this environment, such as Joomla, Drupal, and more.