ZDoom on Intel Mac works. My port is functioning, albeit without sound. Of course, I don’t HAVE an Intel Mac, so it took an interested observer to test for me on IRC.
But, this means truly all I have left to do is byteswap, add sound, and port the PrBoom launcher framework over, and the ZDoom port will be as polished as the PrBoom one is.
Victory is mine for the taking.