anchor.diff:  in
   stdenv.mkDerivation rec {
     pname = "wireplumber";
  -  version = "0.4.8";
  +  version = "0.4.9";
   
     outputs = [ "out" "dev" ] ++ lib.optional enableDocs "doc";
   
  
positive.code:     owner = "pipewire";
      repo = "wireplumber";
      rev = version;
      sha256 = "sha256-xwfggrjKHh5mZdvH6dKqQo6o1ltxuYdjoGYaWl31C/Y=";
    };
  
    patches = [
      # backport a patch to fix hangs in some applications
      # ref: https://gitlab.freedesktop.org/pipewire/wireplumber/-/issues/213
      # FIXME: drop this in 0.4.9
      (fetchpatch {
        url = "https://gitlab.freedesktop.org/pipewire/wireplumber/-/commit/afbc0ce57aac7aee8dc1651de4620f15c73dbace.patch";
        sha256 = "sha256-8ycFnrzDq7QHgjwJ/772OTMsSsN3m7gjbdvTmlMJ+mU=";
      })
    ];
  
    nativeBuildInputs = [
      meson
  
negative.code: { lib
  , stdenv
  , fetchFromGitLab
  , nix-update-script
  , # base build deps
    meson
  