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.
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.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Mapbox GL JS is a JavaScript library that uses WebGL to render interactive maps from vector tiles and Mapbox styles.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.