Nina Fromm updated the Cyberus team roster within the SuperSandro2000/nixpkgs repository, focusing on configuration management using Nix. She implemented a targeted change to the Nix configuration by adding a new team member, 'e1mo', to the Cyberus roster, thereby enhancing access control accuracy across automated deployment pipelines. Her approach emphasized traceability, with concise commit messages that support future audits and governance requirements. While the scope of work was limited to a single feature and did not involve bug fixes, Nina demonstrated proficiency in Nix and configuration management, ensuring that team membership changes are reliably reflected in deployment workflows.