Adrian Stone focused on stabilizing build and profiling infrastructure across two major Meta repositories. For facebook/buck2-prelude, Adrian resolved issues with Visual Studio property sheet ordering, ensuring correct application of C++ language standards and reducing build failures by refining project file generation. In facebook/react-native, Adrian upgraded the profiling system by replacing the hsr_core dependency with hz_tracing, directly integrating tracing macros to eliminate static linking conflicts and streamline profiling setup. Working primarily in C++ and leveraging skills in build system configuration, dependency management, and profiling, Adrian delivered targeted, in-depth fixes that improved reliability and developer experience in complex, multi-platform environments.