qmk_firmware/keyboards/steal_this_keyboard/steal_this_keyboard.h

/* Copyright 2021 Obosob <obosob@riseup.net>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "quantum.h"

/* This a shortcut to help you visually see your layout.
 *
 * The first section contains all of the arguments representing the physical
 * layout of the board and position of the keys.
 *
 * The second converts the arguments into a two-dimensional array which
 * represents the switch matrix.
 */

// readability
#define ___ KC_NO

#define LAYOUT_split_3x5_2( \
        L01, L02, L03, L04, L05, R01, R02, R03, R04, R05, \
        L06, L07, L08, L09, L10, R06, R07, R08, R09, R10, \
        L11, L12, L13, L14, L15, R11, R12, R13, R14, R15, \
                  L16, L17, R16, R17       \
    ) \
    { \
        { L01, L02, L03, L04, L05 }, \
        { L06, L07, L08, L09, L10 }, \
        { L11, L12, L13, L14, L15 }, \
        { L16, L17, ___, ___ , ___}, \
        { R01, R02, R03, R04, R05 }, \
        { R06, R07, R08, R09, R10 }, \
        { R11, R12, R13, R14, R15 }, \
        { R16, R17, ___, ___, ___ }  \
    }