qmk_firmware_custom/keyboards/s65_plus/s65_plus.h

#ifndef S60PLUS_H
#define S60PLUS_H

#include "quantum.h"

#define LAYOUT_ansi( \
  K000, K001, K002, K003, K004, K005, K006, K007, K008, K009, K010, K011, K012, K013, K014,       K016, K017, \
  K100, K101, K102,       K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, \
  K200, K201, K202,       K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214,       K216, K217, \
  K300, K301,       K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313,       K315, K316, K317, \
  K400, K401, K402, K403, K404,                   K408,                   K412, K413, K414, K415, K416, K417  \
) { \
  { K000, K001, K002,  K003,  K004,  K005,  K006,  K007,  K008, K009,  K010,  K011,  K012, K013, K014,  KC_NO, K016, K017 }, \
  { K100, K101, K102,  KC_NO, K104,  K105,  K106,  K107,  K108, K109,  K110,  K111,  K112, K113, K114,  K115,  K116, K117 }, \
  { K200, K201, K202,  KC_NO, K204,  K205,  K206,  K207,  K208, K209,  K210,  K211,  K212, K213, K214,  KC_NO, K216, K217 }, \
  { K300, K301, KC_NO, K303,  K304,  K305,  K306,  K307,  K308, K309,  K310,  K311,  K312, K313, KC_NO, K315,  K316, K317 }, \
  { K400, K401, K402,  K403,  K404,  KC_NO, KC_NO, KC_NO, K408, KC_NO, KC_NO, KC_NO, K412, K413, K414,  K415,  K416, K417 }  \
}

void matrix_init_user(void);
void matrix_scan_user(void);

#endif