qmk_firmware/keyboards/handwired/itstleo9/keymaps/default/keymap.c

// Copyright 2023 QMK
// SPDX-License-Identifier: GPL-2.0-or-later

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /*
     * ┌───┬───┬───┐
     * │ A │ B │ C │
     * ├───┼───┼───┤
     * │ D │ E │ F │
     * ├───┼───┼───┤
     * │ G │ H │ I │
     * └───┴───┴───┘
     */
    [0] = LAYOUT_ortho_3x3(
        KC_A,    KC_B,    KC_C,
        KC_D,    KC_E,    KC_F,
        KC_G,    KC_H,    KC_I
    )
};