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 resolved improper serialization of object-based query parameters, specifically ensuring that thumbnailSizes are now reliably encoded within buildQuery. By using TypeScript and applying strong debugging skills, Fortune improved the reliability of media query transmission and reduced the risk of malformed queries or data loss. His work demonstrated a deep understanding of encoding challenges in backend systems, contributing to more robust and maintainable API interactions within the project.