Oooh.. Damus may be adding a cool feature soon that Corny Chat offers some support for. Hoping to see more clients embrace.
I'm not sure why it'd be renamed to Contact Cards though. Something Contextual may make more sense as the NIP is neither Contact centric, nor a visual element inferred by Card nomenclature.

GitHub
Contact Cards by vitorpamplona · Pull Request #761 · nostr-protocol/nips
Uses unbound lists to create events that define the relationship between two pubkeys in a public or private manner.
Read here


or 35 cubes if its hollowed out on the unseen sides
and if this side is the back
zoomed out like this
than you get 31



#poopstr - probably shouldn't click this hashtag.
