Here is a list of all documented files with brief descriptions:

[detail level 1234]

firmware
include
lora
lora.h	LoRa API
lora_backend.h	LoRa transport layer header
packet.h	Ares Packet API
serial
frame.h	Ares frame library
serial.h	Serial API
serial_backend.h	Serial transport layer header
serial_common.h	Common serial macros
led.h	LED API
lora_handlers.h	LoRa packet handler APIs
settings.h	Ares-LoRa settings manager