@doki

Are you familiar with ImageBuilder?

In short, all you need is a UCI file adding into your image to switch on the wifi.

The files folder is where you put files to be included in your image, create it if you need to ie imagebuilder/files

Then in the files folder of imagebuilder create etc/uci-defaults/customwifi

containing the following:

#!/bin/sh

uci set wireless.@wifi-device[0].disabled=0

uci commit wireless

exit 0