Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

WordPress.com is a platform for self-publishing that is popular for blogging and other works.

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.

Full Site Editing enables users to design and customize their entire WordPress website with a block-based editor.

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

MySQL is an open-source relational database management system.

PHP is a general-purpose scripting language used for web development.

Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.

Sites using the WordPress Block Editor, also known as Gutenberg.

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.

Gutenberg is the development plugin in which new features for the WordPress Block Editor are tested.

WooCommerce is an open-source ecommerce plugin for WordPress.