From their FAQ
Yes, I am aware. I did not argue that is isn’t for testing. I said you didn’t need to compile it for Mac or Windows, because it’s not expected of you to have a CS degree to install it.
You probably just need to use chmod to let your system know it’s allowed to execute it.
WTF is chmod? Execute what? How can you not see that this is a problem?
Well they’re not wrong about clickbait…