minecraft-assets/data/minecraft/datapacks/minecart_improvements/pack.mcmeta

{
  "features": {
    "enabled": [
      "minecraft:minecart_improvements"
    ]
  },
  "pack": {
    "description": {
      "translate": "dataPack.minecart_improvements.description"
    },
    "pack_format": 56
  }
}