During September 2025, Rupp contributed to the rust-lang/gcc repository by simplifying the VXWorks7 RTP build configuration across multiple architectures. He removed linker option pragmas from the RTP system specifications, consolidating all build logic under gprbuild. This approach centralized configuration management, reduced the risk of misconfigurations, and improved reproducibility in continuous integration environments. Working primarily with Ada and leveraging expertise in build systems and embedded systems development, Rupp’s changes established a uniform, architecture-agnostic build process for VXWorks applications. The work demonstrated a focused, in-depth engineering effort to streamline maintenance and enhance cross-architecture consistency without introducing new bugs.