Scott Kelso developed the Host Management feature for the Journeys Admin section of the JesusFilm/core repository, focusing on refactoring the host creation and editing workflow to streamline the user experience. He introduced reusable React hooks and components to manage host details such as title and location, supporting both new host creation and updates to existing hosts. Using TypeScript, Apollo Client, and Material UI, Scott addressed performance bottlenecks to reduce latency and improve admin productivity. His work emphasized maintainability and data consistency, laying a solid foundation for future enhancements while enabling faster, more reliable content operations for the Journeys Admin application.