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.
Flask is a Python micro web framework ideal for rapidly constructing web applications, offering minimalism, flexibility, and modularity.
Kong is an open-source API gateway and platform that acts as middleware between compute clients and the API-centric applications.
Python is an interpreted and general-purpose programming language.