Worked on the ocftw/v1.ocf.tw repository to enhance the accuracy of event metadata for major conferences, focusing on FOSDEM 2023, FOSDEM 2024, and Feira Global Gathering 2023. Addressed a data integrity issue by implementing a targeted correction in the events.yml file, ensuring that conference names and details were accurately reflected for downstream systems and user-facing listings. The solution involved a single, well-scoped YAML patch, demonstrating careful data management and precise change control. No application logic was altered, minimizing risk while improving the reliability of reports and analytics. Utilized YAML and data governance best practices throughout the process.