An unconventional way to manage artifact slots in Godot

This video shows how to manage artifact slots in a presentation layer (written in GDScript) that doesn't know the game rules, by delegating the application of those rules to a game state layer (written in C#), which then uses signals to send the new game state back to the presentation layer to display.

It's an alternative way to implement drag-and-drop-type functionality to what was shown in an earlier video (Promoting an ordinary unit into a hero in a HoMM-inspired game):
https://rumble.com/v4449xo-promoting-an-ordinary-unit-into-a-hero-in-a-homm-inspired-game.html