Technical requirements
We are going to assume that you have PHP 8.0 or greater (8.1 or 8.2) and the Composer tool. If you want to use Laravel Sail (https://laravel.com/docs/9.x/sail), you need the Docker Desktop application (https://www.docker.com/products/docker-desktop).
We will also quickly recap the setup of Octane for our practical example. So, we will install all tools needed.
The source code and the configuration files of the examples described in the current chapter are available here: https://github.com/PacktPublishing/High-Performance-with-Laravel-Octane/tree/main/octane-ch04