Apache is a free and open-source cross-platform web server software.
Glide.js is a dependency-free JavaScript ES6 slider and carousel.
PHP is a general-purpose scripting language used for web development.
Polylang is a WordPress plugin which allows you to create multilingual WordPress site.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.