Is it possible to share notebook in preview or readonly mode between different users on k8s deployment

In k8s deployment of jupyterhub, users have their own pod and separated disk(pv).
there is a need for users to share their notebook to other for communication and discussion.
however, the official plugin of share link need the notebook file to be accessible by both users thus need to place the notebook in a shared volume.
Is there any plugin for share notebook in preview mode or screenshot to others without the need to place it in a shared volume in advance. great thanks.