I've recently played minecraft with the Enchancement mod and fell in love with the ability to have tools that never break!
But! I've had problems including the mod into modpacks — either because of incompatibility or just mod loader issues — especially in versions of 1.21.1, and yet I wanted eternal tools.
So I decided to make a simple datapack that adds the minecraft:unbreakable component to all items in your hand, offhand and armor slots whenever some item changes durability.
I've tested it in 1.21.1, 1.21.5 and 26.1.2, but I imagine that any other version within that range will work!
If there is any item that is loosing durability and the datapack is not adding the minecraft:unbreakable component — like items on trinkets/curios/accessories slots — then just put that item on your offhand and cause any item on your mainhand to loose durability.
