qmk_firmware/keyboards/felix/info.json

{
  "keyboard_name": "Felix",
  "url": "",
  "maintainer": "qmk",
  "width": 4,
  "height": 5,
  "layouts": {
    "LAYOUT_ortho_5x4": {
      "layout": [
        {"label":"K000", "x":0, "y":0},
        {"label":"K001", "x":1, "y":0},
        {"label":"K002", "x":2, "y":0},
        {"label":"K003", "x":3, "y":0},
        {"label":"K100", "x":0, "y":1},
        {"label":"K101", "x":1, "y":1},
        {"label":"K102", "x":2, "y":1},
        {"label":"K103", "x":3, "y":1},
        {"label":"K200", "x":0, "y":2},
        {"label":"K201", "x":1, "y":2},
        {"label":"K202", "x":2, "y":2},
        {"label":"K203", "x":3, "y":2},
        {"label":"K300", "x":0, "y":3},
        {"label":"K301", "x":1, "y":3},
        {"label":"K302", "x":2, "y":3},
        {"label":"K303", "x":3, "y":3},
        {"label":"K400", "x":0, "y":4},
        {"label":"K401", "x":1, "y":4},
        {"label":"K402", "x":2, "y":4},
        {"label":"K403", "x":3, "y":4}
      ]
    }
  }
}