Headless is a WordPress theme intended to be used in JAMStack projects when a WordPress admin experience is desired but the frontend is implemented with Next, React, Gatbsy, 11ty, etc.
GatsbyJS is a free and open-source static site generator based on React. It uses a modern development stack including Webpack, GraphQL, and modern JavaScript and CSS frameworks. It also provides a rich set of plugins, starters, and themes.
Next.js is a React-based web framework that enables server-side rendering, static site generation, and other powerful features for building modern web applications.
A website that uses GraphQL as a query language to manage data fetching and state management. This includes features such as a strongly typed schema, client-side caching, and declarative data fetching to streamline data management and optimize website performance.