Worked on the dora-rs/dora and opencv/opencv repositories, delivering five features and one bug fix over one month. Developed C++ API parity and introduced zero-copy data output, enabling direct buffer access and reducing memory overhead. Enhanced dynamic node initialization, allowing nodes to connect to daemons by ID for greater flexibility. Improved error handling in C++ by adding assertions and runtime checks, increasing robustness. In opencv/opencv, addressed stale typing stubs during incremental builds, ensuring reliable type checking. Utilized C++, Rust, and Python, focusing on cross-language integration, memory management, and build systems to streamline development workflows and improve CI reliability.