Update app.py

app.py

@@ -11,6 +11,29 @@ import sys
 import platform
 from collections import defaultdict
 
+# Hugging Face Spaces ZeroGPU compatibility.
+# If a Space's hardware is set to "ZeroGPU", HF requires at least one
+# function decorated with @spaces.GPU to be registered at startup, or it
+# fails with: "No @spaces.GPU function detected during startup".
+# This app does no GPU work at all (pure OpenCV/CPU), so the decorator
+# below is a no-op wrapper everywhere except on a ZeroGPU Space, where it
+# satisfies that startup requirement. If you don't need ZeroGPU hardware,
+# the simpler fix is to switch the Space's hardware to "CPU basic" instead.
+try:
+    import spaces
+    HAS_SPACES = True
+except ImportError:
+    spaces = None
+    HAS_SPACES = False
+
+
+def gpu_compatible(fn):
+    """Wrap fn with @spaces.GPU when running on a HF ZeroGPU Space;
+    otherwise return fn unchanged so local/non-Spaces runs are unaffected."""
+    if HAS_SPACES:
+        return spaces.GPU(fn)
+    return fn
+
 # Available English voices for different providers
 groq_voices = [
     "Arista-PlayAI", "Atlas-PlayAI", "Basil-PlayAI", "Briggs-PlayAI",