ish alpine linux i686 error / wrong kernel

Hello all

i hope u can help me. I really new to this and i m trying and trying but now i need help. Actually i am very excited if my issue could be solved

intention:
Installing rtl8811au driver for running alfa AWUS036ACS on iphone xr (i686) via iSH (Alpine linux)

i followed your guide from morrornr and this is what i got:

Smartphone:~/8821au-20210708# ./install-driver.sh
Your kernel header files aren't properly installed.
Please consult your distro documentation or user support forums.
Once the header files are properly installed, please run "sudo ./install-driver.sh"

Anybody facing this issue?

i ran also following commands before:

Smartphone:~# apk add linux-lts-dev make gcc

Smartphone:~/rtl8812au# apk add alpine-sdk linux-lts-
dev

looking forward for response