In September 2025, Henry focused on enhancing the build system for the bitcoin/bitcoin repository by centralizing environment-specific configuration. He refactored the build process to move the CMAKE_SKIP_INSTALL_RPATH setting from CMakeLists.txt into the Guix build script, using CMake and Shell scripting to streamline build environment management. This approach reduced duplication and cross-file dependencies, improving maintainability and making the build process more reproducible across Guix-based environments. By clarifying and consolidating these settings, Henry facilitated easier onboarding and future updates. His work demonstrated a thoughtful application of build system configuration and CI/CD practices to address environment-related build drift.