Split access between bitwarden and vaultwarden

Is there any was to implement a "hybrid" environment? To clarify. I have several users who use bitwarden personally and are already using the desktop apps, extensions etc from the official channel. I am not able to add these users to my org as they do not exist within it. I am trying to make it so they can keep their personal bitwarden accounts, and just provide access to my vaultwarden instance. Is this an upstream api limitation?