A Mac port is definitely in the works! I have actually worked on the game on a Mac mini a few times, and it tested just fine - I will work on getting a Mac port out on the next update! :D
Viewing post in Plans for a Mac port? :D
I work as a graphic designer , using the Mac as my main platform since 2012. I still have my Late 2011 Macbook Pro '15 running at full speed here and, as every year Apple's products get more and more expensive here in Brazil (currently a brand new Macbook costs the equivalent of a car), I doubt I'll be able to buy another one sooner hahaha. :D
Anyway, let me know if I can help test the Mac build. :)