qmk_firmware/keyboards/bastardkb/scylla/v2/splinky_3/info.json

{
    "keyboard_name": "Scylla Splinky",
    "usb": {
        "device_version": "2.0.0"
    },
    "split": {
        "soft_serial_pin": "GP1"
    },
    "processor": "RP2040",
    "bootloader": "rp2040"
}