Worked on enhancing user access control in the w3c/aria-at-app repository by updating configuration files to onboard a new user with both admin and tester roles. Focused on configuration management using text-based files, the approach involved modifying admins.txt and testers.txt to ensure accurate role-based access control and streamline onboarding processes. The changes were tracked through Git for auditability, supporting improved workflow resilience and broader testing coverage. No bugs were addressed during this period, as the primary effort centered on access provisioning and maintaining clear audit trails. Demonstrated skills include configuration management, Git version control, and cross-functional coordination within the project.