It looks like there's a little gap somewhere in the Mac version; if I open the game's package contents and double-click on the Contents/MacOS/Syrup2, it opens no issues, but double-clicking on the game container itself does nothing.
oh wow, really? i don't have a mac so this is good to know... not sure how i would go about testing to solve this, seems like a ren'py-side issue so hmmm..... thanks for reporting it.