Geert Litjens contributed to the DIAGNijmegen/website-content repository by developing and refining content management features over a two-month period. He focused on maintaining data hygiene and ensuring the accuracy of member biographies and job vacancy statuses, directly supporting site reliability and user trust. Using Markdown and web development skills, Geert updated member status information and clarified professional biographies, ensuring that affiliations and achievements were accurately represented. He also implemented a targeted feature to mark job vacancies as closed, reducing user confusion and support inquiries. The work demonstrated careful attention to content accuracy and process transparency, though it did not involve bug fixes.