Hi gbeaton!
I have not this kind of problem. I use Kstars ekos with my two ZWO ASI cameras: an ASI 120MC-S and an ASI 1600MM Cooled.
I already used them in my Mac without any problem.
Sorry but there doesn't appear to be a nightly build for Mac. If you don't want to wait for the next release, you would need to download the source and build it yourself. Don't ask me how, I know nothing about Macs.
Yeah I graduated to using a Raspberry Pi as well. I got tired of leaving my laptop outside all night. Plus the wiring was a mess. With the Pi I was able to keep everything self contained on the telescope, so all I have to do is roll out the scope, and plug in the power.
StellarMate is a great way to go if you want a ready-built system that you just plug in and it works. I'm a tinkerer so of course I went with a generic Pi and rolled my own.