Demo ran fine, if very slowly, with CPU-only using "--device cpu" for me. It defaults to CUDA though. Try using mps I guess, I saw multiple references to code

Demo ran fine, if very slowly, with CPU-only using "--device cpu" for me. It defaults to CUDA though. Try using mps I guess, I saw multiple references to code checking if device is not mps, so seems like it should be supported. If not, CPU.