So, I'm stuck on a raspberry pi4 till monday since my main pee sea lost it's power supply this morning. I've just been trying to run the jar file, it launches but then tells me my GPU is too old (I have no GPU). I assume there's a way to launch the game as such that it disables more intensive graphical features and accepts whatever this thing has for integrated graphics? But I'm gormless, totally devoid of wit and calculational aptitude and don't know how. Send help please