Worked on the systemd/systemd repository to enhance the safety and observability of tmpfiles relabeling during dry-run operations. Addressed a bug by introducing explicit checks in C to ensure that file relabeling is skipped when dry-run mode is active, thereby preventing unintended file changes during testing and continuous integration. Added detailed debug logging to capture both relabeling actions and skipped operations, improving diagnostics and documentation. Focused on robust guard clauses and maintained performance by gating new code paths behind the dry-run flag. Demonstrated strong skills in debugging, file system management, and system programming while delivering safer and more transparent testing workflows.