I looked it up. Apparently Blitz also had a product called "Blitz Max", which did compile to both Windows & Mac. But the developer abandoned both for something new called Monkey.
And the cool game "Crypt of The Necromancer" was created with Monkey as well. Seems they have an Itch.io account haha.
https://blitzresearch.itch.io/monkey2
Not sure if you feel like upgrading? Seems to be free, and you'll expand your audience too. Win/win