Fortune Ochi focused on backend development and API integration for the tinacms/tinacms repository, addressing a complex issue with media query workflows in the next-tinacms-azure integration. He delivered a targeted bug fix that improved the serialization of object-based query parameters, specifically ensuring that thumbnailSizes are correctly encoded within buildQuery. By resolving this serialization problem using TypeScript, Fortune enhanced the reliability of media query transmission and reduced the risk of malformed queries or data loss. His work demonstrated a strong grasp of debugging and encoding challenges, contributing depth and stability to the integration without introducing new features during the period.