25.05: raspberry pi zero 2W firmware won't connect to some access points

[srd424]

Cross-post from https://github.com/NixOS/nixpkgs/issues/425395 as it was suggested this repo might be more appropriate:

More recent Linux drivers/firmware seem to cause problems between the wifi on the Raspberry Pi Zero 2W and some access points; in my case I'm hitting it with Mikrotik kit and Nixos 25.05. The closest thing to an upstream bug report I've found is https://github.com/raspberrypi/bookworm-feedback/issues/279

Fortunately the simple fix that is working here is:

boot.extraModprobeConfig = '' options brcmfmac feature_disable=0x2000 '';

This seems to be the right repo for board-specific workarounds, although I note there doesn't seem to be a subdir for the pi zero / pi zero 2 yet?