qmk_firmware/keyboards/lets_split/lets_split.h

#ifndef LETS_SPLIT_H
#define LETS_SPLIT_H

#include "quantum.h"

void promicro_bootloader_jmp(bool program);

#define KEYMAP( \
	k00, k01, k02, k03, k04, k05, k40, k41, k42, k43, k44, k45, \
	k10, k11, k12, k13, k14, k15, k50, k51, k52, k53, k54, k55, \
	k20, k21, k22, k23, k24, k25, k60, k61, k62, k63, k64, k65, \
	k30, k31, k32, k33, k34, k35, k70, k71, k72, k73, k74, k75 \
	) \
	{ \
		{ k00, k01, k02, k03, k04, k05 }, \
		{ k10, k11, k12, k13, k14, k15 }, \
		{ k20, k21, k22, k23, k24, k25 }, \
		{ k30, k31, k32, k33, k34, k35 }, \
		{ k40, k41, k42, k43, k44, k45 }, \
		{ k50, k51, k52, k53, k54, k55 }, \
		{ k60, k61, k62, k63, k64, k65 }, \
		{ k70, k71, k72, k73, k74, k75 } \
	}

#endif