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.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Jekyll is a blog-aware, static site generator for personal, project, or organisation sites.
Netlify providers hosting and server-less backend services for web applications and static websites.
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.