-NKRO_ENABLE ?= no # USB Nkey Rollover
-BACKLIGHT_ENABLE ?= no # Enable keyboard backlight functionality on B7 by default
-MIDI_ENABLE ?= no # MIDI controls
-UNICODE_ENABLE ?= no # Unicode
-BLUETOOTH_ENABLE ?= no # Enable Bluetooth with the Adafruit EZ-Key HID
-AUDIO_ENABLE ?= no # Audio output on port C6
+NKRO_ENABLE = no # USB Nkey Rollover
+BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE = no # MIDI controls
+UNICODE_ENABLE = no # Unicode
+BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no # Audio output on port C6