It seems like the download for Mac is broken, it keeps on saying that the application is damaged
Viewing post in Toziuha Night: Order of the Alchemists comments
Thank you for trying. I have investigated and apparently it is a security lockout: Since macOS 10.8, Apple requires applications to be signed before they can be run. However, code signing is a paid process (costing a $99/year subscription, and more if you also want to publish to the Mac App Store). So I cant do more, i'm poor dev xD more info about this problem (and how bypass) here: Disable Gatekeeper on macOS Catalina (10.15) (disable-gatekeeper.github.io)