How to modify original MeAuriga firmware

#1

I would like to make additions or supplements to the original MeAuriga firmware with mBlock desktop software. Can you assist me with simple instructions from which folder I can find this original firmware?

Br,
Rosvokarhu

#2

If you download the mBlock source from Github, it is in the src/firmware/Firmware_for_Auriga folder.

#3