ActuallyAdditions/src/generated/resources/data/actuallyadditions/recipes/void_sack.json

{
  "type": "minecraft:crafting_shapeless",
  "category": "misc",
  "ingredients": [
    {
      "item": "actuallyadditions:travelers_sack"
    },
    {
      "tag": "forge:ender_pearls"
    },
    {
      "tag": "forge:obsidian"
    },
    {
      "item": "actuallyadditions:void_crystal_block"
    }
  ],
  "result": {
    "item": "actuallyadditions:void_sack"
  }
}