Worked on the puckeditor/puck repository to implement an in-memory caching layer aimed at optimizing performance for external field fetches. The solution introduced a configurable feature flag, allowing teams to enable or disable caching as needed, thereby minimizing redundant data requests while preserving existing application behavior when the cache is off. This approach reduced backend load and laid the foundation for improved UI responsiveness. The work was carried out using React and TypeScript, focusing on front end development and maintaining API compatibility. Changes were deliberately scoped to minimize risk, ensuring that the new feature integrated smoothly with the existing codebase.