I'm looking through the 2024 Brackeys game jam entries and this is among my favorites. The gameplay is engaging and I'm so enamored with the little detail of the cards tilting as you move your mouse over them. I swear I just played around with that element for a couple minutes XD
Thanks for the comment. That is mostly adapted from a freely available shader. I just combined with a couple other ideas to get our foil and gold effects (which were in turn inspired by Balatro).
https://godotshaders.com/shader/3d-perspective-texturerect-with-touch/
I saw you have a game made in unity. I bet there are similar resources.