qmk_firmware/keyboards/handwired/wulkan/wulkan.h

#pragma once

#include "quantum.h"

#define ___ KC_NO

#define LAYOUT_ortho_4x12( \
    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, \
    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B  \
) \
{ \
    { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B }, \
    { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B }, \
    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B }, \
    { K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B }  \
}


#define LAYOUT LAYOUT_ortho_4x12