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app.py

@@ -913,9 +913,25 @@ def create_ankigen_interface():
 
 # --- Main Execution --- (Runs if script is executed directly)
 if __name__ == "__main__":
+    import os
+
     try:
         ankigen_interface = create_ankigen_interface()
         logger.info("Launching AnkiGen Gradio interface...")
-        ankigen_interface.launch()
+
+        # For HuggingFace Spaces, use their port config
+        server_port = int(os.environ.get("GRADIO_SERVER_PORT", 7860))
+
+        # Only specify server_name and port in local development
+        launch_kwargs = {"share": False}
+        if not os.environ.get("SPACE_ID"):  # Not on HuggingFace Spaces
+            launch_kwargs.update(
+                {"server_name": "127.0.0.1", "server_port": server_port}
+            )
+
+        ankigen_interface.queue(
+            default_concurrency_limit=2,  # Allow 2 concurrent executions
+            max_size=10,  # Maximum 10 users in queue
+        ).launch(**launch_kwargs)
     except Exception as e:
         logger.critical(f"Failed to launch Gradio interface: {e}", exc_info=True)