Apache is a free and open-source cross-platform web server software.
Awesomplete is a tool in the Javascript UI Libraries category of a tech stack.
Contao is an open source CMS that allows you to create websites and scalable web applications.
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.
Stellar.js is a JavaScript library and jQuery plugin specifically designed to deliver parallax scrolling effects for web pages.