Open Vaultwarden without master password

Good morning,

Today, I use KeepassXC, I plan to switch to Vaultwarden mainly to allow me to share identifiers with my family.
But I have a problem reproducing an account opening functionality.
When I launch KeepassXC, I can not enter a password and identify myself with my Yubikey.
I’m trying to do the same thing with Vaultwarden but I can’t find how to remove the master password and only keep the Yubikey.
This may be impossible but before giving up, I prefer to ask you.
Thank you so much

That isn’t possible. It always needs a master password.
There is only one exception, and that is login with device.