Worked on the cccteam/ccc repository to enhance frontend data generation and improve backend reliability. Introduced support for nullable boolean types in resource generation templates by updating TypeScript data type mappings, ensuring accurate representation of null values in generated frontend code. Strengthened RPC metadata handling in Go by enforcing the presence of the 'fields' property, reducing the risk of runtime errors from undefined structures. Focused on aligning data models between backend and frontend, which streamlined integration and reduced maintenance overhead. Demonstrated skills in API design, backend and frontend development, and code refactoring, delivering both new features and targeted bug fixes.