qmk-dactyl-manuform-a/keyboards/binepad/bn003/keymaps/via/keymap.c

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT(
        KC_0,
        KC_1,
        KC_2
    ),
    [1] = LAYOUT(
        KC_NO,
        KC_NO,
        KC_NO
    ),
    [2] = LAYOUT(
        KC_NO,
        KC_NO,
        KC_NO
    ),
    [3] = LAYOUT(
        KC_NO,
        KC_NO,
        KC_NO
    )
};