fix

app.py

@@ -2,7 +2,15 @@ import os
 import subprocess
 import importlib.util
 
-NVIDIA_AVAILABLE = subprocess.check_output("nvidia-smi").decode("utf-8").strip() != ""
+NVIDIA_AVAILABLE = (
+    subprocess.run(
+        "nvidia-smi",
+        shell=True,
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+    ).returncode
+    == 0
+)
 
 if NVIDIA_AVAILABLE:
     DEVICES = ["cpu", "cuda"]