Nah, I don't need a refund. I have x86 machines I can run the game on. It's just that I've been doing little projects where I build little arcade cabs with Raspberry Pis inside, and I thought I would try Mixolumia, seeing as there's a Pico-8 version, but I totally forgot that the Raspberry Pi is ARM-based and not x86 based.
Maybe there's an embedded Linux system out there that uses x86?