qmk_firmware_custom/keyboards/8pack/rev11/rev11.h

#pragma once

#include "8pack.h"

#define LAYOUT( \
    K00, K01, K02, K03, \
	K10, K11, K12, K13 \
) { \
	{ K13, K12, K11, K10 }, \
    { K03, K02, K01, K00 } \
}