anchor.diff:      mkdir -p "$out/lib/firmware/brcm"
   
       # Wifi firmware
  -    for filename in firmware-nonfree/brcm/brcmfmac434??-sdio.*; do
  +    shopt -s extglob
  +    for filename in firmware-nonfree/brcm/brcmfmac434??{,s}-sdio.*; do
         cp "$filename" "$out/lib/firmware/brcm"
       done
   
  
positive.code: 
    outputHashMode = "recursive";
    outputHashAlgo = "sha256";
    outputHash = "0a54gyrq6jfxxvimaa4yjfiyfwf7wv58v0a32l74yrzyarr3ldby";
  
    meta = with lib; {
      description = "Firmware for builtin Wifi/Bluetooth devices in the Raspberry Pi 3+ and Zero W";
  
negative.code:       name = "firmware-nonfree";
        owner = "RPi-Distro";
        repo = "firmware-nonfree";
        rev = "54ffdd6e2ea6055d46656b78e148fe7def3ec9d8";
        sha256 = "4WTrs/tUyOugufRrrh0qsEmhPclQD64ypYysxsnOyS8=";
      })
    ];
  
  