Jossm worked on the mujoco-wasm repository, focusing on stabilizing Python bindings and improving memory safety for cross-language integration. During this period, Jossm addressed a critical issue in the MjSpec.copy function, ensuring it returned a managed MjSpec object rather than a raw pointer. This C++ change enhanced type safety and memory management when interfacing with Python, reducing binding fragility and lowering downstream maintenance costs. By refining ownership semantics and clarifying repository changes, Jossm improved the reliability and maintainability of the WASM/JS/Python bridge, demonstrating a strong grasp of C++, Python bindings, and robust software design principles in practice.