qmk_firmware/keyboards/ocean/sus/keyboard.json

{
    "keyboard_name": "Sus",
    "manufacturer": "Ocean",
    "maintainer": "Ocean",
    "usb": {
      "vid": "0x9624",
      "pid": "0x0009",
      "device_version": "0.0.1"
    },
    "features": {
        "bootmagic": false,
        "extrakey": true,
        "mousekey": true,
        "nkro": true
    },
    "matrix_pins": {
      "cols": ["C6", "D4", "D0"],
      "rows": ["B5", "B4", "E6", "D7"]
    },
    "diode_direction": "ROW2COL",
    "development_board": "promicro",
    "layouts": {
        "LAYOUT_ortho_4x3": {
          "layout": [
            {"matrix": [0, 0], "x": 0, "y": 0},
            {"matrix": [0, 1], "x": 1, "y": 0},
            {"matrix": [0, 2], "x": 2, "y": 0},

            {"matrix": [1, 0], "x": 0, "y": 1},
            {"matrix": [1, 1], "x": 1, "y": 1},
            {"matrix": [1, 2], "x": 2, "y": 1},

            {"matrix": [2, 0], "x": 0, "y": 2},
            {"matrix": [2, 1], "x": 1, "y": 2},
            {"matrix": [2, 2], "x": 2, "y": 2},

            {"matrix": [3, 0], "x": 0, "y": 3},
            {"matrix": [3, 1], "x": 1, "y": 3},
            {"matrix": [3, 2], "x": 2, "y": 3}
          ]
        }
    }
}