Download here
ValhallaTrinkets compatibility is available through ItemsAdderAdditions.
ItemsAdderAdditions can write ValhallaTrinkets metadata to ItemsAdder item stacks when they are created. Configure it under the trinkets key of your ItemsAdder item's valhalla section.
items:
amulet:
display_name: "<gold>Amulet"
valhalla:
trinkets:
trinket_id: 1001
trinket_unique_id: 1001
unique: true
unstackable: true
The metadata is written directly to the item stack. Gameplay effects require ValhallaTrinkets installed on the server.
Check the full documentation here.