During May 2025, Alex extended the C API surface of the facebookresearch/faiss repository by exposing the IndexBinaryIVF class to C-based projects. This work involved developing new C++ sources and headers, implementing getter and setter accessors, and adding core methods such as merge_from and search_preassigned to the C API. By bridging C++ functionality into C, Alex enabled direct access to critical FAISS features from C environments, facilitating broader integration and adoption. The project required expertise in C API development, C++, and software engineering, and delivered a robust, maintainable interface that enhances FAISS usability in diverse production pipelines.