Worked on the heroiclabs/hiro repository to enhance schema flexibility by making the 'category' field optional within Hiro schemas. This change, implemented using TypeScript and leveraging skills in data validation and schema design, removed a mandatory constraint that previously complicated data entry and schema evolution. By simplifying validation and storage requirements for certain data entries, the update reduced friction in data ingestion and allowed for more adaptable schema modifications over time. The work included clear commit traceability to support future auditing or rollback needs, aligning with business goals to improve developer productivity and maintainability without introducing unnecessary complexity or breaking existing workflows.