During July 2025, Chamilouga focused on backend development for the chamilo/chamilo-lms repository, addressing a reliability issue in the course tools module. Working primarily with PHP, Chamilouga fixed a bug in the Hide All functionality, which previously failed to consistently update tool visibility when instructors selected the 'all' option. By refining the $skipTools array logic, the patch ensured that all intended tools were properly hidden or shown, restoring expected behavior for both instructors and learners. This targeted bug fix improved the stability and maintainability of course management workflows, demonstrating careful attention to backend logic and user experience within the LMS.