Update main.py

main.py

@@ -1,10 +1,4 @@
-from fastapi import FastAPI
-import uvicorn
+from nicegui import ui
 
-app = FastAPI()
-
-@app.get("/")
-def read_root():
-    return {"Hello": "World!"}
-if __name__ == "__main__":
-    uvicorn.run("main:app", port=7860, log_level="info")
+ui.label('Hello NiceGUI!')
+ui.run(host='0.0.0.0', port=7860)