Worked on the rustfs/rustfs repository to implement a backend handler enabling safe deletion of user groups by administrators. The solution enforced a prerequisite that only empty groups could be deleted, thereby preventing accidental removal of groups containing users and enhancing both data integrity and RBAC governance. This feature was delivered collaboratively and included updates to the admin interface, ensuring that deletion actions were only permitted when group membership was empty. The work was accomplished using Rust and focused on backend development and API design, addressing a key aspect of administrative user management without introducing any bug fixes during the period.