switch to CPU

app.py

@@ -1,17 +1,16 @@
 import gradio as gr
-import spaces
+import torch
 from PIL import Image
 from utils import WaifuScorer
 
 SCORER = None
 
 
-@spaces.GPU
 def score_image(image: Image.Image) -> float:
     global SCORER
     if SCORER is None:
         SCORER = WaifuScorer(
-            device='cuda',
+            device='cuda' if torch.cuda.is_available() else 'cpu',
             verbose=True,
         )
     return SCORER([image])[0]