Currently there are no native rustc or cargo binaries for Windows on ARM64. The 32-bit x86 binaries (i686-pc-windows-msvc) work correctly, but suffer a noticeable performance and battery life penalty.

I've tried to build rustc myself, but have had quite a few issues trying to cross-compile it since there are no pre-built bootstrap binaries for aarch64-pc-windows-msvc. Cargo builds without issue, but doesn't make much sense without a native rustc.

What would it take to get this working and available via rustup? I'm happy to keep working on this myself but am slightly lost as to how to proceed.