Problem with binding rebuilt VFX (MacOS) Kernel

Question

When I rebuild the VFX kernel using x64.mo and mosx64.sh, I can generate VFXFORTH64.img. But the script then tries to run it directly, and macOS throws a “exec format error” (likely expecting a Mach-O binary):

% ./VFXFORTH64.img zsh: exec format error: ./VFXFORTH64.img

Is there a work-around for this, or am I following the wrong shell script? (I'm using the script mosx64.sh in /Kernel as the guide.)

thanks

- Bruno