app.py

import chainlit as cl

@cl.on_chat_start
async def start():
    await cl.Message(content="Hello! How can I assist you today?").send()

@cl.on_message
async def main(message: cl.Message):
    await cl.Message(content=f"You said: {message.content}").send()

if __name__ == "__main__":
    cl.run(port=7860, debug=True)