diff --git a/Makefile b/Makefile
index 989b6674..054dabc6 100644
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,6 +52,7 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= keyboardio/avr/libraries/Kaleidoscope/etc/
 
 # If Kaleidoscope's Arduino libraries cannot be found, e.g. because 
 # they reside outside of SKETCHBOOK_DIR, we fall back to assuming that 
@@ -69,7 +71,7 @@ $(info *************************************************************************
 $(info )
 endif
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
 
 # Set up an argument for passing to the simulator tests in docker
 # but if the var isn't set, don't even pass the definition
diff --git a/etc/sketch-arduino-cli.mk b/etc/sketch-arduino-cli.mk
new file mode 100644
index 00000000..879ec75a
--- /dev/null
+++ b/etc/sketch-arduino-cli.mk
@@ -0,0 +1,17 @@
+KALEIDOSCOPE_BUILDER_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/bin/
+
+.DEFAULT_GOAL := compile
+
+all: 
+	@echo "Make all target doesn't do anything"
+	@: ## Do not remove this line, otherwise `make all` will trigger the `%` rule too.
+
+decompile: disassemble
+	@: ## Do not remove this line, otherwise `make all` will trigger the `%` rule too.
+
+xbuild: compile
+	@: ## Do not remove this line, otherwise `make all` will trigger the `%` rule too.
+
+%:
+	@BOARD_HARDWARE_PATH="$(BOARD_HARDWARE_PATH)" $(KALEIDOSCOPE_BUILDER_DIR)/kaleidoscope-builder $@
+
diff --git a/examples/Devices/EZ/ErgoDox/Makefile b/examples/Devices/EZ/ErgoDox/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/EZ/ErgoDox/Makefile
+++ b/examples/Devices/EZ/ErgoDox/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/KBDFans/KBD4x/Makefile b/examples/Devices/KBDFans/KBD4x/Makefile
index 81a29443..e90e531a 100644
--- a/examples/Devices/KBDFans/KBD4x/Makefile
+++ b/examples/Devices/KBDFans/KBD4x/Makefile
@@ -37,12 +37,13 @@ $(info $(SKETCHBOOK_DIR)/hardware/keyboardio/ which was installed by hand.)
 $(info )
 $(info ***************************************************************************)
 $(info )
-
+	
 endif
 
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/Keyboardio/Atreus/Makefile b/examples/Devices/Keyboardio/Atreus/Makefile
index 51da5a83..e90e531a 100644
--- a/examples/Devices/Keyboardio/Atreus/Makefile
+++ b/examples/Devices/Keyboardio/Atreus/Makefile
@@ -12,7 +12,6 @@ PACKAGE_DIR ?= $(HOME)/.arduino15
 endif
 
 
-
 ARDUINO_INSTALLED_ENV=$(shell ls -dt $(PACKAGE_DIR)/packages/keyboardio/hardware/avr 2>/dev/null |head -n 1)
 MANUALLY_INSTALLED_ENV=$(shell ls -dt $(SKETCHBOOK_DIR)/hardware/keyboardio/avr 2>/dev/null |head -n 1)
 
@@ -44,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -52,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/Keyboardio/Imago/Makefile b/examples/Devices/Keyboardio/Imago/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/Keyboardio/Imago/Makefile
+++ b/examples/Devices/Keyboardio/Imago/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/Keyboardio/Model01/Makefile b/examples/Devices/Keyboardio/Model01/Makefile
index 6edab0aa..e90e531a 100644
--- a/examples/Devices/Keyboardio/Model01/Makefile
+++ b/examples/Devices/Keyboardio/Model01/Makefile
@@ -43,29 +43,15 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
-endif
-
-BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
-KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
 
-ifneq ("$(wildcard $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk)","") 
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+endif
 
-else
-
-$(info ****************************************************************************)
-$(info I can't find an installed copy of Kaleidoscope's source code.)
-$(info )
-$(info This usually means you're attempting to build a device's firmware from a git)
-$(info checkout without having previously told Arduino where to find Kaleidoscope.)
-$(info )
-$(info It is probably the case that you want to move or symlink your git checkout )
-$(info of the Kaleidoscope bundle to the directory: ) 
-$(info )
-$(info   $(SKETCHBOOK_DIR)/hardware/keyboardio )
-$(info ****************************************************************************)
 
+BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
+KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-endif
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/OLKB/Planck/Makefile b/examples/Devices/OLKB/Planck/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/OLKB/Planck/Makefile
+++ b/examples/Devices/OLKB/Planck/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/SOFTHRUF/Splitography/Makefile b/examples/Devices/SOFTHRUF/Splitography/Makefile
index b2a84731..e90e531a 100644
--- a/examples/Devices/SOFTHRUF/Splitography/Makefile
+++ b/examples/Devices/SOFTHRUF/Splitography/Makefile
@@ -37,16 +37,21 @@ $(info $(SKETCHBOOK_DIR)/hardware/keyboardio/ which was installed by hand.)
 $(info )
 $(info ***************************************************************************)
 $(info )
-
+	
 endif
 
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
+
+
 
 endif
 
+
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/Technomancy/Atreus/Makefile b/examples/Devices/Technomancy/Atreus/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/Technomancy/Atreus/Makefile
+++ b/examples/Devices/Technomancy/Atreus/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/gHeavy/ButterStick/Makefile b/examples/Devices/gHeavy/ButterStick/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/gHeavy/ButterStick/Makefile
+++ b/examples/Devices/gHeavy/ButterStick/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Devices/gHeavy/FaunchPad/Makefile b/examples/Devices/gHeavy/FaunchPad/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Devices/gHeavy/FaunchPad/Makefile
+++ b/examples/Devices/gHeavy/FaunchPad/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/examples/Internal/Sketch_Exploration/Makefile b/examples/Internal/Sketch_Exploration/Makefile
index 5d1b814e..e90e531a 100644
--- a/examples/Internal/Sketch_Exploration/Makefile
+++ b/examples/Internal/Sketch_Exploration/Makefile
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -51,5 +52,6 @@ endif
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk
diff --git a/testing/makefiles/delegate.mk b/testing/makefiles/delegate.mk
index 2819f18a..e90e531a 100644
--- a/testing/makefiles/delegate.mk
+++ b/testing/makefiles/delegate.mk
@@ -1,5 +1,5 @@
-# This stub makefile for a Kaleidoscope plugin pulls in 
-# all targets from the Kaleidoscope-Plugin library
+# This stub makefile for a Kaleidoscope example pulls in all the targets
+# required to build the example
 
 UNAME_S := $(shell uname -s)
 
@@ -43,6 +43,7 @@ endif
 BOARD_HARDWARE_PATH = $(ARDUINO_INSTALLED_ENV)
 KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= build-tools/makefiles/
 KALEIDOSCOPE_BUILDER_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/bin/
+KALEIDOSCOPE_ETC_DIR ?= $(ARDUINO_INSTALLED_ENV)/libraries/Kaleidoscope/etc/
 
 
 
@@ -50,24 +51,7 @@ endif
 
 
 BOARD_HARDWARE_PATH ?= $(SKETCHBOOK_DIR)/hardware
-KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/build-tools/makefiles/
-
-# If Kaleidoscope's Arduino libraries cannot be found, e.g. because 
-# they reside outside of SKETCHBOOK_DIR, we fall back to assuming that 
-# the hardware directory can be determined in relation to the position of 
-# this Makefile.
-ifeq ("$(wildcard $(BOARD_HARDWARE_PATH)/keyboardio/build-tools/makefiles/rules.mk)","")
-   # Determine the path of this Makefile
-   MKFILE_DIR:=$(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
-   BOARD_HARDWARE_PATH = $(MKFILE_DIR)/../../../../../..
-endif
-
-ifeq ("$(wildcard $(BOARD_HARDWARE_PATH)/keyboardio/build-tools/makefiles/rules.mk)","")
-$(info ***************************************************************************)
-$(info Unable to autodetect a proper BOARD_HARDWARE_PATH. Please define it manually.)
-$(info ***************************************************************************)
-$(info )
-endif
-
-include $(BOARD_HARDWARE_PATH)/$(KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR)/sketch-arduino-cli.mk
+KALEIDOSCOPE_PLUGIN_MAKEFILE_DIR ?= keyboardio/avr/build-tools/makefiles/
+KALEIDOSCOPE_ETC_DIR ?= $(BOARD_HARDWARE_PATH)/keyboardio/avr/libraries/Kaleidoscope/etc/
 
+include $(KALEIDOSCOPE_ETC_DIR)/sketch-arduino-cli.mk