qmk_firmware/keyboards/loki65/rules.mk

# MCU name
MCU = STM32F072

# Bootloader selection
BOOTLOADER = stm32-dfu

# Wildcard to allow APM32 MCU
DFU_SUFFIX_ARGS = -v FFFF -p FFFF

# Do not put the microcontroller into power saving mode
# when we get USB suspend event. We want it to keep updating
# backlight effects.
OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE

# Build Options
#   change yes to no to disable
#
BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
MOUSEKEY_ENABLE = yes       # Mouse keys
EXTRAKEY_ENABLE = yes       # Audio control and System control
CONSOLE_ENABLE = no         # Console for debug
COMMAND_ENABLE = no         # Commands for debug and configuration
NKRO_ENABLE = yes           # Enable N-Key Rollover
BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
WS2812_DRIVER = pwm         # Driver for RGB uderglow
AUDIO_ENABLE = no           # Audio output