update

app.py

@@ -10,4 +10,5 @@ def greet(n):
     print(zero.device) # <-- 'cuda:0' 🤗
     return f"Hello {zero + n} Tensor"
 
-demo = gr.Interface(fn=greet, inputs=gr.Number(), outputs=gr.Text())
+demo = gr.Interface(fn=greet, inputs=gr.Number(), outputs=gr.Text())
+demo.launch()