Apache is a free and open-source cross-platform web server software.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Skilldo is a content management system written in PHP and paired with a MySQL or MariaDB database.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.