qmk_firmware/keyboards/nullbitsco/scramble/v2/keyboard.json

{
    "features": {
        "bootmagic": false,
        "encoder": true,
        "extrakey": true,
        "mousekey": true,
        "nkro": false
    },
    "encoder": {
        "rotary": [
            {"pin_a": "GP24", "pin_b": "GP25"}
        ]
    },
    "qmk": {
        "tap_keycode_delay": 10
    },
    "processor": "RP2040",
    "bootloader": "rp2040",
    "matrix_pins": {
        "direct": [
            ["GP6", "GP8", "GP10"],
            ["GP29", "GP28", "GP22"]
        ]
    }
}