Explore the process of converting an existing Gatsby site into a Gatsby theme in this 58-minute screencast featuring Greg Rickaby. Follow along as Greg demonstrates the conversion of his personal website, gregrickaby.dev, into a reusable Gatsby theme. Gain insights into the steps and best practices for theme development, learn about the challenges and solutions encountered during the conversion process, and discover how to create a more modular and maintainable Gatsby project. Dive into practical examples, code comparisons, and expert tips to enhance your Gatsby development skills and streamline your workflow.