Change serial number without re-build source code

[leotordo]

Hello, with lightbulb example I've to set specific value of setup-ID (when I add the accessory) and serial number (visibile in accessory properties in "Home").

For setup ID I use ./tools/factory_nvs_gen.py to generate a specific .bin file and it works fine.

Is there a .py for serial number? How to change app_main.c for using it?

Thanks Stefano