qmk_firmware/keyboards/montsinger/rewind/info.json

 {
    "keyboard":"Rewind",
    "manufacturer": "Montsinger",
    "url": "https://montsinger.net",
    "maintainer": "rossman360",
    "usb": {
        "vid": "0xFEED",
        "pid": "0x552F",
        "device_version": "0.0.2"
    },
    "processor": "atmega32u4",
    "bootloader": "caterina",
    "layouts": {
        "LAYOUT_ortho_5x10": {
            "layout": [
                {"x":0, "y":0},
                {"x":1, "y":0},
                {"x":2, "y":0},
                {"x":3, "y":0},
                {"x":4, "y":0},
                {"x":5, "y":0},
                {"x":6, "y":0},
                {"x":7, "y":0},
                {"x":8, "y":0},
                {"x":9, "y":0},

                {"x":0, "y":1},
                {"x":1, "y":1},
                {"x":2, "y":1},
                {"x":3, "y":1},
                {"x":4, "y":1},
                {"x":5, "y":1},
                {"x":6, "y":1},
                {"x":7, "y":1},
                {"x":8, "y":1},
                {"x":9, "y":1},

                {"x":0, "y":2},
                {"x":1, "y":2},
                {"x":2, "y":2},
                {"x":3, "y":2},
                {"x":4, "y":2},
                {"x":5, "y":2},
                {"x":6, "y":2},
                {"x":7, "y":2},
                {"x":8, "y":2},
                {"x":9, "y":2},

                {"x":0, "y":3},
                {"x":1, "y":3},
                {"x":2, "y":3},
                {"x":3, "y":3},
                {"x":4, "y":3},
                {"x":5, "y":3},
                {"x":6, "y":3},
                {"x":7, "y":3},
                {"x":8, "y":3},
                {"x":9, "y":3},

                {"x":0, "y":4},
                {"x":1, "y":4},
                {"x":2, "y":4},
                {"x":3, "y":4},
                {"x":4, "y":4},
                {"x":5, "y":4},
                {"x":6, "y":4},
                {"x":7, "y":4},
                {"x":8, "y":4},
                {"x":9, "y":4}
            ]
        }
    }
}