Apache is a free and open-source cross-platform web server software.
Invenio is an open-source software framework for large-scale digital repositories that provides the tools for management of digital assets in an institutional repository and research data management systems.
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.
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.