qmk-keychron-q3-colemak-dh/keyboards/oddball/v1/keyboard.json

{
    "matrix_pins": {
        "cols": ["D6", "D7", "B4", "D3", "C6", "C7"],
        "rows": ["F6", "B5", "B6", "F7"]
    },
    "diode_direction": "COL2ROW",
    "bootloader": "halfkay"
}