Thomas De Meester developed two features for the craftcms/cms repository over a two-month period, focusing on permission-driven enhancements for Entry fields. He implemented a UI lightswitch and backend filtering in PHP and Twig to control visibility of sections based on user permissions, addressing data governance and security requirements. In the following month, Thomas refactored permission logic by relocating it from BaseElement to Entries, streamlining configuration and reducing cross-component dependencies. This work improved maintainability and editor experience while supporting future access-control improvements. His contributions demonstrated depth in back end development and user interface design, with careful attention to maintainable code structure.