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.
Javascript forms validation script.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Swup is a versatile and expandable library for implementing page transitions on websites that use server-side rendering.
Varnish is a reverse caching proxy.