diff --git a/boards/stm32l031k6.json b/__boards/stm32l031k6.json
similarity index 100%
rename from boards/stm32l031k6.json
rename to __boards/stm32l031k6.json
diff --git a/variants/NUCLEO_L031K6/PeripheralPins.c b/__variants/NUCLEO_L031K6/PeripheralPins.c
similarity index 100%
rename from variants/NUCLEO_L031K6/PeripheralPins.c
rename to __variants/NUCLEO_L031K6/PeripheralPins.c
diff --git a/variants/NUCLEO_L031K6/PinNamesVar.h b/__variants/NUCLEO_L031K6/PinNamesVar.h
similarity index 100%
rename from variants/NUCLEO_L031K6/PinNamesVar.h
rename to __variants/NUCLEO_L031K6/PinNamesVar.h
diff --git a/variants/NUCLEO_L031K6/ldscript.ld b/__variants/NUCLEO_L031K6/ldscript.ld
similarity index 100%
rename from variants/NUCLEO_L031K6/ldscript.ld
rename to __variants/NUCLEO_L031K6/ldscript.ld
diff --git a/variants/NUCLEO_L031K6/variant.cpp b/__variants/NUCLEO_L031K6/variant.cpp
similarity index 100%
rename from variants/NUCLEO_L031K6/variant.cpp
rename to __variants/NUCLEO_L031K6/variant.cpp
diff --git a/variants/NUCLEO_L031K6/variant.h b/__variants/NUCLEO_L031K6/variant.h
similarity index 100%
rename from variants/NUCLEO_L031K6/variant.h
rename to __variants/NUCLEO_L031K6/variant.h
diff --git a/variants/STM32L031K6/PeripheralPins.c b/__variants/STM32L031K6/PeripheralPins.c
similarity index 100%
rename from variants/STM32L031K6/PeripheralPins.c
rename to __variants/STM32L031K6/PeripheralPins.c
diff --git a/variants/STM32L031K6/PinNamesVar.h b/__variants/STM32L031K6/PinNamesVar.h
similarity index 100%
rename from variants/STM32L031K6/PinNamesVar.h
rename to __variants/STM32L031K6/PinNamesVar.h
diff --git a/variants/STM32L031K6/ldscript.ld b/__variants/STM32L031K6/ldscript.ld
similarity index 100%
rename from variants/STM32L031K6/ldscript.ld
rename to __variants/STM32L031K6/ldscript.ld
diff --git a/variants/STM32L031K6/variant.cpp b/__variants/STM32L031K6/variant.cpp
similarity index 100%
rename from variants/STM32L031K6/variant.cpp
rename to __variants/STM32L031K6/variant.cpp
diff --git a/variants/STM32L031K6/variant.h b/__variants/STM32L031K6/variant.h
similarity index 100%
rename from variants/STM32L031K6/variant.h
rename to __variants/STM32L031K6/variant.h
diff --git a/manufacturing/programming/firmware20210720.bin.zip b/manufacturing/firmware20210720.bin.zip
similarity index 100%
rename from manufacturing/programming/firmware20210720.bin.zip
rename to manufacturing/firmware20210720.bin.zip
diff --git a/manufacturing/programming/firmware20210720_short.bin.zip b/manufacturing/firmware20210720_short.bin.zip
similarity index 100%
rename from manufacturing/programming/firmware20210720_short.bin.zip
rename to manufacturing/firmware20210720_short.bin.zip
diff --git a/src/chainGame.cpp b/src/chainGame.cpp
index 844aa74..4ae727e 100644
--- a/src/chainGame.cpp
+++ b/src/chainGame.cpp
@@ -16,6 +16,7 @@ void c_chaingame::nextPattern(void)
 
 void c_chaingame::runGame(void)
 {
+  //check if we are idle
   if (!patternFlag && !cheatButtonFlag)
   {
     if (buttonIsPressed(ledpattern[patternIndex]))
@@ -38,12 +39,14 @@ void c_chaingame::runGame(void)
     }
   }
 
+  // check if the actual pattern switch is off
   if (!buttonIsPressed(ledpattern[patternIndex]))
   {
     // pattern switch is open, turn off pattern LED
     turnOffLed(ledpattern[patternIndex]);
   }
 
+  // check if the game is in cheat mode and cheat switch is off
   if (!buttonIsPressed(cheatbutton) && cheatButtonFlag)
   {
     // cheat switch is open, turn of cheat LED
@@ -52,6 +55,7 @@ void c_chaingame::runGame(void)
     cheatbutton = 0;
   }
 
+  // if all siwtches are off turn all LEDs off
   if (!anybutton())
   {
     //all switches are open, turn off all LEDs
diff --git a/src/main.cpp b/src/main.cpp
index 6a63a75..a92493b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,4 @@
-#include "Arduino.h"
+#include "arduino.h"
 #include "board.h"
 #include "buttons.h"
 #include "led.h"