Joerg Bornemann enhanced the reliability of the microsoft/vcpkg build system by refining how local dependencies are installed. He addressed a bug in the CMake-based build process, ensuring that only MODULE_LIBRARY, SHARED_LIBRARY, and EXECUTABLE target types are considered valid for local installation, while INTERFACE_LIBRARY targets are excluded. This adjustment prevents erroneous dependency installations that previously led to build failures in downstream projects. Working primarily with CMake and leveraging his expertise in build systems, Joerg’s focused contribution improved installation accuracy and reduced errors, demonstrating a deep understanding of dependency management and the nuances of target validation within complex build environments.