Worked on the mujoco-wasm repository to enhance the stability and safety of Python bindings for C++ code. Focused on improving memory management by updating the MjSpec.copy method to return a managed MjSpec object instead of a raw pointer, which addressed a critical bug affecting type safety and ownership semantics. This change reduced the fragility of cross-language bindings and made Python integration more reliable, lowering downstream maintenance costs and debugging time. The work maintained clear, traceable changes in the codebase, supporting future audits and maintenance. Utilized C++, Python bindings, and software design principles to achieve these improvements.