In May 2025, Michal Kubien worked on the MobilityData/mobility-database-catalogs repository, focusing on improving licensing data quality and compliance within the catalog metadata. He addressed a specific issue by correcting the license URL and updating license information for ZDiTM Szczecin, which helped prevent downstream confusion and ensured accurate catalog consumption. His technical approach involved careful configuration and documentation updates, leveraging Python to implement the changes. By associating the fix with a specific commit and issue, Michal enhanced traceability and supported audit requirements. The work demonstrated attention to detail in data governance, though it was limited in scope to a targeted bug fix.