I'm trying to setup a Next JS app with react-native. I found the reference for pages router here - https://github.com/vercel/next.js/blob/v14.2.4/examples/with-react-native-web/pages/_document.js to override document and apply styles using AppRegistry. Is there similar example available with app based router too? I'm seeing flicker in the browser experience since styles are not getting applied with initial render. Any pointers will be helpful. Thanks.