During December 2024, Dominion enhanced JSON handling in the stephenberry/glaze repository by enabling safe subclassing of the core json_t type. Dominion introduced a virtual destructor to json_t, allowing developers to extend JSON types without risking resource leaks or undefined behavior. By tightening template constraints, Dominion also prevented direct conversions from derived json_t types, reducing the likelihood of misuse and runtime errors. This work, implemented in C++ with a focus on library development and object-oriented programming, improved the extensibility and safety of JSON processing in glaze, laying a solid foundation for future enhancements while demonstrating careful attention to type safety and maintainability.