Apache is a free and open-source cross-platform web server software.
Darkmode.js is a JavaScript library that enables an HTML element to switch between CSS themes.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
PHP is a general-purpose scripting language used for web development.
Unix is a family of multitasking, multiuser computer operating systems.