Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
OpenStreetMap is a free, editable map of the whole world that is being built by volunteers largely from scratch and released with an open-content license.
Prism is an extensible syntax highlighter.
Typed.js is a library that types. It is designed to create typewriter-style animations with ease.
UIKit is the framework used for developing iOS applications.