This document summarizes Roy Sivan's talk on using Gutenberg to build web applications. It discusses how Gutenberg data is not initially structured in a way that lends itself to building apps. However, Roy introduces the Gutenberg Object Plugin which adds Gutenberg data to WordPress REST API endpoints, allowing the data to be accessed. The document then presents a case study of how a company used WordPress, Gutenberg, and a headless React frontend to build their new website.