qmk_firmware/keyboards/boardsource/3x4/info.json

{
  "manufacturer": "Boardsource",
  "keyboard_name": "3x4",
  "maintainer": "waffle87",
  "development_board": "promicro",
  "diode_direction": "COL2ROW",
  "features": {
    "bootmagic": true,
    "extrakey": true,
    "mousekey": true
  },
  "matrix_pins": {
    "cols": ["B6", "B2", "B3", "B1"],
    "rows": ["F7", "F6", "F5"]
  },
  "url": "https://boardsource.xyz/store/5ecc2008eee64242946c98c1",
  "usb": {
    "device_version": "1.0.0",
    "pid": "0x0304",
    "vid": "0x4273"
  },
  "layouts": {
    "LAYOUT": {
      "layout": [
        { "matrix": [0, 0], "x": 0, "y": 0 },
        { "matrix": [0, 1], "x": 1, "y": 0 },
        { "matrix": [0, 2], "x": 2, "y": 0 },
        { "matrix": [0, 3], "x": 3, "y": 0 },
        { "matrix": [1, 0], "x": 0, "y": 1 },
        { "matrix": [1, 1], "x": 1, "y": 1 },
        { "matrix": [1, 2], "x": 2, "y": 1 },
        { "matrix": [1, 3], "x": 3, "y": 1 },
        { "matrix": [2, 0], "x": 0, "y": 2 },
        { "matrix": [2, 1], "x": 1, "y": 2 },
        { "matrix": [2, 2], "x": 2, "y": 2 },
        { "matrix": [2, 3], "x": 3, "y": 2 }
      ]
    }
  }
}