During November 2025, Cmeng Gao enhanced cross-language interoperability and system reliability across the gazebosim/gz-sim and eclipse-zenoh/zenoh-plugin-ros2dds repositories. Gao improved the gz-sim websocket server by updating protobuf definitions to include top-level enums and implementing deduplication in proto generation, which resolved parsing issues for protobuf.js clients. In the zenoh-plugin-ros2dds project, Gao addressed a route cleanup bug by ensuring zenoh key expressions were properly converted to ROS2 names before hashmap usage, strengthening route-management reliability. This work demonstrated depth in Rust and C++ systems programming, plugin development, and backend integration, resulting in more robust and maintainable distributed workflows.