qmk_firmware/keyboards/converter/a1200/mistress1200/info.json

{
    "keyboard_name": "MiSTress1200",
    "manufacturer": "8bits4ever",
    "usb": {
        "vid": "0xFFFF",
        "pid": "0x0000",
        "device_version": "0.0.1"
    },
    "processor": "atmega16u4",
    "bootloader": "atmel-dfu"
}