Tony focused on enhancing build-system stability for the pytorch/executorch repository, addressing a critical gap in dependency management. He identified and resolved a missing etdump dependency required by the executor runner and CMake, ensuring the build process included all necessary tools for execution and debugging. Working primarily with C++ and Python, Tony validated the updated build path to prevent CI failures and improve local development reliability. His work strengthened the clarity and robustness of the build configuration, laying a foundation for smoother future tool integrations. This targeted fix demonstrated depth in build systems and contributed to more dependable end-to-end workflows.