Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
Ionicons is an open-source icon set crafted for web, iOS, Android, and desktop apps.
Jekyll is a blog-aware, static site generator for personal, project, or organisation sites.
MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Unpkg is a content delivery network for everything on npm.