During their work on the openSUSE/open-build-service repository, Ddonisa delivered backend improvements focused on enhancing the accuracy and usability of request listings. They implemented advanced sorting for user and group requests by joining the bs_request_actions table, which exposed additional columns for more efficient triage and reporting. To address data integrity issues, Ddonisa applied DISTINCT to queries joining bs_requests and bs_request_actions, resolving duplicate row problems and supporting better decision-making for operators. Their work demonstrated proficiency in backend development and database query optimization using Ruby, resulting in cleaner data retrieval and reduced manual intervention for the development and operations teams.