Apache is a free and open-source cross-platform web server software.
Moodle is a free and open-source Learning Management System (LMS) written in PHP and distributed under the GNU General Public License.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Red Hat is an open-source Linux operating system.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.