diff --git a/.arduino-ci.yml b/.arduino-ci.yml
index c88c96fae..c13782ad5 100644
--- a/.arduino-ci.yml
+++ b/.arduino-ci.yml
@@ -1,25 +1,41 @@
+platforms:
+  mega2560:
+    board: arduino:avr:mega:cpu=atmega2560
+    package: arduino:avr
+    gcc:
+      features:
+      defines:
+        - __AVR__
+        - __AVR_ATmega2560__
+        - ARDUINO_ARCH_AVR
+        - ARDUINO_AVR_MEGA2560
+      warnings:
+        - no-unknown-attributes
+        - no-address-of-packed-member
+      flags:
+
 unittest:
-    platforms:
-        - mega2560
-    libraries:
-      - "Adafruit BusIO"
-      - "Adafruit MAX31865"
-      - "Arduino-PID-Library"
-      - "Ethernet"
-      - "LiquidCrystal"
-      - "RTClib"
-      - "Keypad"
-      - "SdFat"
+  platforms:
+    - mega2560
+  libraries:
+    - "Adafruit BusIO"
+    - "Adafruit MAX31865"
+    - "Arduino-PID-Library"
+    - "Ethernet"
+    - "LiquidCrystal"
+    - "RTClib"
+    - "Keypad"
+    - "SdFat"
 
 compile:
-    platforms:
-      - mega2560
-    libraries:
-      - "Adafruit BusIO"
-      - "Adafruit MAX31865"
-      - "Arduino-PID-Library"
-      - "Ethernet"
-      - "LiquidCrystal"
-      - "RTClib"
-      - "Keypad"
-      - "SdFat"
+  platforms:
+    - mega2560
+  libraries:
+    - "Adafruit BusIO"
+    - "Adafruit MAX31865"
+    - "Arduino-PID-Library"
+    - "Ethernet"
+    - "LiquidCrystal"
+    - "RTClib"
+    - "Keypad"
+    - "SdFat"
diff --git a/.github/actions/spelling/excludes.txt b/.github/actions/spelling/excludes.txt
index f8dd1dc86..25db06c3b 100644
--- a/.github/actions/spelling/excludes.txt
+++ b/.github/actions/spelling/excludes.txt
@@ -12,5 +12,6 @@ LICENSE
 .all-contributorsrc
 .gitignore
 Makefile
+.arduino-ci.yml
 ^other/*
 ^docs/Menus.xlsx$
diff --git a/.github/actions/spelling/expect.txt b/.github/actions/spelling/expect.txt
index 0d5fa7a48..e03d4e8e1 100644
--- a/.github/actions/spelling/expect.txt
+++ b/.github/actions/spelling/expect.txt
@@ -45,6 +45,7 @@ Flawfinder
 FONTFAMILY
 FONTSTYLE
 FONTWEIGHT
+gcc
 Gemfile
 getcwd
 github
diff --git a/GUI/README.md b/GUI/README.md
index cd04ec93e..eadba2ef8 100644
--- a/GUI/README.md
+++ b/GUI/README.md
@@ -1,5 +1,5 @@
 # TankControllerGUI
-A Python GUI for TankController running on the mocks provided by `Arduino CI`
+A Python GUI for TankController running on the mocks provided by `Arduino CI`.
 
 ## Build Process
 Follow these steps