Windows is not supported yet.

What I checked:

• Latest release assets only include macOS and Linux tarballs.
• npm/package.json limits os to darwin and linux.
• npm/bin/install.js rejects win32.
• A direct zig build -Dtarget=x86_64-windows -Doptimize=ReleaseFast fails on POSIX-only assumptions (fork, clock_gettime, isatty, write, connect).

Requested work:

• Add a working Windows target, ideally x86_64-windows first.
• Publish Windows release assets and update the installer manifest.
• Update installer/runtime detection to accept Windows.
• Add CI coverage for Windows build and a minimal runtime smoke test.

If Windows is intentionally out of scope, a short note in the README and installer error path would help avoid confusion.