Apache is a free and open-source cross-platform web server software.
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.
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
Lightbox is small javascript library used to overlay images on top of the current page.
Mapbox.js is a JavaScript library provided by Mapbox for working with interactive maps and geospatial data.
PHP is a general-purpose scripting language used for web development.
Unpkg is a content delivery network for everything on npm.