Just so you know, the game is unable to launch on Linux under X11 (at least in my case, and other documented cases with Ren'Py) due to the "gui/logo.png" file being too big. Resizing it to 1100x1300 allows it to launch (I also had the same issue with another game that I commented on, and it seems X11 doesn't like the game icon being above 2000x2000 px or something around that).
If anyone else has the issue and wants to fix it, go into "game/gui", and run "mv logo.png logo_original.png && convert -resize 1100x1300 logo_original.png logo.png".
This will rename the file to logo_original and then make a 1100x1300 copy of it named logo to replace the original. You can delete logo_original if you want to save an extra 300-ish Mb.