Hi, sorry, as far as I can tell this is out of my hands - try adjusting the security settings to allow opening of any application, or use the itch.io app, somehow it seems to make the file run.
Recent community posts
The Linux version is what came out of the Processing export as is, so if it doesn't run I'm not entirely sure there. I'm not familiar with Linux programs but there weren't any options (except 32/64 bit) for exporting. The Mac/Win versions are so much larger because they package in a Java distributable alongside the program itself.