jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PHP is a general-purpose scripting language used for web development.
React is an open-source JavaScript library for building user interfaces or UI components.
XenForo is a PHP-based forum hosting program for communities that is designed to be deployed on a remote web server.