keychron_qmk_firmware/keyboards/8pack/keymaps/default/keymap.c

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
	[0] = LAYOUT(
	    KC_V, KC_C, KC_X, MO(1),
		KC_A, KC_S, KC_D, KC_F
	),
	[1] = LAYOUT(
	    UG_TOGG, UG_PREV,  UG_NEXT, KC_NO,
		QK_BOOT, BL_DOWN,  BL_UP,   BL_TOGG
	)
};