Over a two-month period, this developer enhanced cross-platform Rust integration within the apache/nuttx and apache/nuttx-apps repositories, focusing on build system consolidation and simulator support for both ARM64 and Intel macOS hosts. They streamlined CMake and Makefile workflows, aligning Rust target specifications and automating rebuilds of Rust static libraries to improve maintainability and reduce build fragility. Their work included introducing Mach-O target support, refining host-specific build configurations, and ensuring consistent cross-compilation for embedded systems. Utilizing Rust, CMake, and Makefile scripting, they delivered five features that expanded Rust development and testing capabilities across the Nuttx ecosystem without introducing regressions or bugs.