superb-warfare/src/main/resources/data/superbwarfare/recipes/minigun_smithing.json

{
  "type": "minecraft:smithing_transform",
  "template": {
    "item": "superbwarfare:minigun_blueprint"
  },
  "base": {
    "item": "superbwarfare:legendary_material_pack"
  },
  "addition": {
    "item": "minecraft:netherite_ingot"
  },
  "result": {
    "item": "superbwarfare:minigun"
  }
}