Double sided cards

It would be very useful for collaborative sessions to be able to create double sided cards.
Say you have the option to select what are on both sides. That way you could create different "decks".
And you could for instance have a user draw a card from a deck and "turn it over" to reveal for instance a question or similar.

This could enable a lot of team exercises.

One additional feature could be to set if the contents of the card once turned over should only be visible to the person who turned it over, or everyone.

I have done decks of cards before. I have a script that generates them and spits out valid json that I can just copy and paste inte Excalidraw. But since everyone sees the contents before picking the card it limits the usefulness.
I have tried "hiding" it with every other card being a blank one for instance, but some kind of native support woudl be way better.

No files, tests, or entry points are named in the issue. First clarify the card and deck interaction, including whether the revealed side is visible to one person or everyone; done means collaborative users can create, draw, turn over, and privately or publicly reveal double-sided cards.