anchor.diff:  
     self = stdenv.mkDerivation rec {
       pname = "pipewire";
  -    version = "0.3.40";
  +    version = "0.3.42";
   
       outputs = [
         "out"
  
positive.code: , webrtc-audio-processing
  , ncurses
  , readline81 # meson can't find <7 as those versions don't have a .pc file
  , makeFontsConf
  , callPackage
  , nixosTests
  
negative.code:       owner = "pipewire";
        repo = "pipewire";
        rev = version;
        sha256 = "sha256-Iyd5snOt+iCT7W0+FlfvhMUZo/gF+zr9JX4HIGVdHto=";
      };
  
      patches = [
  