5 files changed, 25 insertions, 22 deletions
diff --git a/keyboards/40percentclub/nano/config.h b/keyboards/40percentclub/nano/config.h
index 088fafcaa5..36840d2f6c 100644
--- a/keyboards/40percentclub/nano/config.h
+++ b/keyboards/40percentclub/nano/config.h
@@ -15,8 +15,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_H
-#define CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -41,5 +40,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DIODE_DIRECTION COL2ROW
 
 #define TAPPING_TERM 200
-
-#endif
diff --git a/keyboards/40percentclub/nano/keymaps/default/keymap.c b/keyboards/40percentclub/nano/keymaps/default/keymap.c
index cd9d4549de..9ce282a28a 100644
--- a/keyboards/40percentclub/nano/keymaps/default/keymap.c
+++ b/keyboards/40percentclub/nano/keymaps/default/keymap.c
@@ -3,7 +3,6 @@
 #define _MAIN 0
 #define _FN 1
 
-#define _______ KC_TRNS
 #define KC_X0 LT(_FN, KC_ESC)
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
diff --git a/keyboards/40percentclub/nano/keymaps/spooka/keymap.c b/keyboards/40percentclub/nano/keymaps/spooka/keymap.c
index 63b90da09f..7908794fe0 100644
--- a/keyboards/40percentclub/nano/keymaps/spooka/keymap.c
+++ b/keyboards/40percentclub/nano/keymaps/spooka/keymap.c
@@ -2,8 +2,6 @@
 
 #define _MAIN 0
 
-#define _______ KC_TRNS
-
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   [_MAIN] = LAYOUT(
      RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI,
diff --git a/keyboards/40percentclub/nano/nano.h b/keyboards/40percentclub/nano/nano.h
index 21d6c4f30c..ae297ac12e 100644
--- a/keyboards/40percentclub/nano/nano.h
+++ b/keyboards/40percentclub/nano/nano.h
@@ -1,5 +1,4 @@
-#ifndef NANO_H
-#define NANO_H
+#pragma once
 
 #include "quantum.h"
 
@@ -10,5 +9,3 @@
     { k01, k02, k03, k04 }, \
     { k05, k06, k07, k08 } \
 }
-
-#endif
diff --git a/keyboards/40percentclub/nano/rules.mk b/keyboards/40percentclub/nano/rules.mk
index dc510bc0d1..66ad3ffc66 100644
--- a/keyboards/40percentclub/nano/rules.mk
+++ b/keyboards/40percentclub/nano/rules.mk
@@ -1,7 +1,4 @@
-SRC = matrix.c
-
 # MCU name
-#MCU = at90usb1287
 MCU = atmega32u4
 
 # Processor frequency.
@@ -40,16 +37,28 @@ F_USB = $(F_CPU)
 OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
 
 
-# Boot Section Size in *bytes*
-#   Teensy halfKay   512
-#   Teensy++ halfKay 1024
-#   Atmel DFU loader 4096
-#   LUFA bootloader  4096
-#   USBaspLoader     2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   atmega32a    bootloadHID
+BOOTLOADER = caterina
+
+
+# If you don't know the bootloader type, then you can specify the
+# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
+#   Teensy halfKay      512
+#   Teensy++ halfKay    1024
+#   Atmel DFU loader    4096
+#   LUFA bootloader     4096
+#   USBaspLoader        2048
+# OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
 
 # Build Options
-#   change to "no" to disable the options, or define them in the Makefile in 
+#   change to "no" to disable the options, or define them in the Makefile in
 #   the appropriate keymap folder that will get included automatically
 #
 BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
@@ -67,4 +76,7 @@ RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight.
 
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+# custom matrix setup
+SRC = matrix.c
 CUSTOM_MATRIX = yes