I think there's something wrong with the Mac version, I've downloaded and extracted it multiple times, but it says the app is damaged and can't be opened.
It's a recent problem with app signing. A way to fix it is to run
xattr -d com.apple.quarantine "Triangle Run.app"
from the terminal. Then it should run fine.
That worked, thank you!
thanks for this! Gonna look into doing this properly for v1.1!