qmk_firmware/keyboards/spaceman/2_milk/keymaps/copypasta/keymap.c

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      [0] = LAYOUT(
          RCTL(KC_C), 
          RCTL(KC_V)
          )
};