import gradio as gr

FILE = "saved_text.txt"

def append_text(text):
    if text.strip():
        with open(FILE, "a") as f:
            f.write(text + "\n")
    return f"Appended: {text}"

iface = gr.Interface(
    fn=append_text,
    inputs=gr.Textbox(lines=5, label="Type here"),
    outputs="text",
    title="Append Text to File"
)

if __name__ == "__main__":
    iface.launch()