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.
Bunny Fonts is an open-source, privacy-first web font platform designed to put privacy back into the internet.
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.
Lighttpd is an open-source web server optimised for speed-critical environment.
Open Graph is a protocol that is used to integrate any web page into the social graph.