Gatsby, often perceived as a tool for static site generation, is also capable of supporting dynamic web applications by leveraging React hydration and other modern web technologies. Although the distinction between static sites and apps can be ambiguous, dynamic content often defines the app-like nature of a project. Gatsby provides a robust framework for building both static and dynamic applications by integrating tools such as React, GraphQL, and headless CMSes to enhance performance and developer experience. Through a process called React hydration, static HTML generated by Gatsby can be transformed into interactive applications that support features like user authentication and remote data interaction. The upcoming webinar aims to clarify Gatsby's capabilities in dynamic app development, providing practical examples such as e-commerce platforms and data-driven applications, and offering insights into when to choose Gatsby over other server-rendered or hybrid approaches.