Worked on the facebookresearch/faiss repository to enhance the build system by introducing a configurable CMake option, FAISS_ENABLE_EXTRAS, aimed at improving embeddability and integration flexibility. This feature allows users to selectively compile extra components such as benchmarks and demos, with the default setting preserving existing behavior to avoid regressions. By enabling the exclusion of non-essential components when FAISS is used as a subproject, the update reduces build footprint and simplifies downstream integration. The work involved C++ and CMake, focusing on build system configuration to maintain compatibility while offering greater control to developers integrating FAISS into larger projects.