Worked on expanding build compatibility for the microsoft/mu_basecore repository by enabling support for the Visual Studio 2022 ARM64 toolchain. This involved adjusting include guards, refining assembly macro definitions, and implementing conditional compilation to accommodate MSVC ARM64 requirements. Leveraging expertise in ARM architecture, build systems, and embedded systems, the developer used Assembly and C to establish robust cross-compiler and cross-architecture build compatibility. The changes accelerated ARM64 continuous integration feedback, reduced manual build friction, and laid the foundation for smoother onboarding of ARM64 contributors, ultimately streamlining iteration cycles and supporting the broader adoption of ARM64 within the project’s release pipelines.