Hi Matt
I’ve started using the mods today for the first time on my Mac. You can’t use the mod manager as it’s windows only, but you can copy the mod files to your airportceo data folders and it works fine.
I’ve used the global and European mods and not had any issues.
The link below has some helpful information.
Edit: if you haven’t enabled library view on your Mac, you can open the correct folders by right clicking on the airportceo desktop short cut and selecting “show pacakage contents”.