I've put together an easy installer for EMI for Macs.
EMI Mac Installer (99.8 MB)
Currently works only with the Windows English CD set. I could add support for the Mac CD set if requested.
It includes all the patches described here
, including the higher quality audio (which is why the installer is so large, sorry).
By default it runs under Cider (wine-derivative) which is the most accurate/stable/glitch-free*. You can switch to ResidualVM (with anti-aliasing) by holding option on launch.
Preferences are shared between the two engines but save files are not.
ResidualVM is a 64-bit build which should continue to work on future versions of macOS.
* There actually is one glitch: On some machines you may see just black for the cutscenes - you can fix this by turning on movie subtitles.