FaunaDB` is a cloud-based NoSQL database that integrates seamlessly with the `JAMstack`, a set of best practices for building fast, scalable web applications. The JAMstack emphasizes separation of concerns between application deliverables and APIs, allowing for well-defined build steps and automated processes using services like Netlify. FaunaDB's capabilities are showcased in a demo readymade for use with Netlify Functions and FaunaDB, enabling developers to build serverless CRUD apps efficiently.