GamerItems/src/main/resources/data/gameritems/recipes/jeremium_boots.json

{
    "type": "minecraft:crafting_shaped",
    "pattern": [
        "FEF",
        "F F"
    ],
    "key": {
        "F": {
            "item": "gameritems:jeremium_ingot"
        },
        "E": {
            "item": "minecraft:netherite_ingot"
        }
    },
    "result": {
        "item": "gameritems:jeremium_boots",
        "count": 1
    }
}