Apache is a free and open-source cross-platform web server software.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
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.
Queue-it is a virtual waiting room platform designed to protect your website and mobile app from slowdowns or crashes during end-user peaks.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.