Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
GSAP is an animation library that allows you to create animations with JavaScript.
TYPO3 is a free and open-source Web content management system written in PHP.