# Start Gradio
>>> with gr.Blocks() as demo:
>>>     ... # define Gradio demo + use `save_feedback`
>>> demo.launch()
```  
And that's it! User input/outputs and feedback will be available as a dataset on the Hub. By using a unique JSON file name, you are guaranteed you won't overwrite data from a previous run or data from another
Spaces/replicas pushing concurrently to the same repository.  
For more details about the [`CommitScheduler`], here is what you need to know:
- **append-only:**