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app.py

@@ -15,8 +15,15 @@ import os
 import re
 import uuid
 
-import gradio as gr
-from dotenv import load_dotenv
+# Gradio 6 defaults to server-side rendering, which fronts the Python app with
+# a Node proxy. On Spaces that proxy shuts down immediately after startup and
+# takes the app with it ("Stopping Node.js server..." then RUNTIME_ERROR).
+# Nothing here needs SSR - it is a single interactive page, not a crawlable
+# site - so turn it off before gradio is imported and reads the setting.
+os.environ.setdefault("GRADIO_SSR_MODE", "false")
+
+import gradio as gr  # noqa: E402
+from dotenv import load_dotenv  # noqa: E402
 
 # override=False so real environment variables win over a stray .env file.
 # On a host, secrets arrive as env vars and must not be shadowed by a file.