In February 2025, Mafelin Sp focused on repository maintenance for circleci/ex by removing the obsolete catalog-info.yaml file following the decommissioning of a Backstage service. This work involved careful configuration management using YAML and Git, ensuring that the cleanup did not impact application runtime behavior. By eliminating stale Backstage configuration, Mafelin reduced future maintenance overhead and minimized configuration drift, aligning the repository with the current system architecture. The change was clearly documented through a precise commit, supporting future audits and decommissioning efforts. The depth of the work lay in its attention to long-term maintainability and risk reduction rather than user-facing features.