qmk_firmware/keyboards/jiran/info.json

{
    "keyboard_name": "Jiran",
    "manufacturer": "Ladniy",
    "url": "t.me/s/ladniys",
    "maintainer": "Ladniy",
    "usb": {
         "vid": "0x1209",
         "pid": "0x3735",
         "device_version": "3.0.0"
     },
    "matrix_pins": {
        "cols": ["D3", "D2", "D4", "C6", "D7", "E6"],
        "rows": ["B4", "B5", "F4", "F5", "F6"]
    },
    "diode_direction": "COL2ROW",
     "split": {
        "soft_serial_pin": "D1"
     },
    "processor": "atmega32u4",
    "bootloader": "caterina"
}