Worked on maintaining the EbookFoundation/free-programming-books repository, focusing on improving the quality and reliability of its resource catalog. Addressed a data integrity issue by identifying and removing a broken APL book link that resulted in a 404 error, thereby enhancing the accuracy of the resource list for users. The technical approach centered on content management and documentation best practices, utilizing Markdown to ensure consistency and clarity throughout the repository. This contribution, while limited in scope to a single bug fix, demonstrated attention to detail and a commitment to maintaining high standards for open-source educational resources and their ongoing usability.