2017 27" imac No wifi or audio

Wifi Have tried the just configure-broadcom-wl to no avail.
Audio i'm not sure where to start as it uses a cirrus apple hda audio patch in most deb based linux builds.

Solution

We do not support out of tree Wi-Fi drivers. They are generally of extremely poor quality or break other existing hardware when included. Your only option for this would be to make a custom image