#include QMK_KEYBOARD_H const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {[0] = LAYOUT(KC_L, KC_R)}; void keyboard_post_init_user(void) { // Customise these values to desired behaviour debug_enable = true; debug_matrix = true; debug_keyboard = true; // debug_mouse=true; }