anchor.diff:        runHook postInstall
       '';
   
  -  dontStrip = true;
  -  dontPatchELF = true;
  -
  -  meta = {
  +  meta = with stdenv.lib; {
       homepage = https://www.spotify.com/;
       description = "Play music from the Spotify music service";
  -    license = stdenv.lib.licenses.unfree;
  -    maintainers = with stdenv.lib.maintainers; [ eelco ftrvxmtrx sheenobu mudri ];
  +    license = licenses.unfree;
  +    maintainers = with maintainers; [ eelco ftrvxmtrx sheenobu mudri ];
  +    platforms = [ "x86_64-linux" ];
     };
   }
  
positive.code:   # Please update the stable branch!
    # Latest version number can be found at:
    # http://repository-origin.spotify.com/pool/non-free/s/spotify-client/
    version = "1.0.52.717.g2f08534a-47";
  
    deps = [
      alsaLib
  
negative.code: stdenv.mkDerivation {
    name = "spotify-${version}";
  
    src = fetchurl {
      url = "https://repository-origin.spotify.com/pool/non-free/s/spotify-client/spotify-client_${version}_amd64.deb";
      sha256 = "1sh6bv23yx0fcbmf60c2yyi6411ij85k4jalpjlck2w26nfj1b3g";
    };
  
    buildInputs = [ dpkg makeWrapper ];
  
    doConfigure = false;
    doBuild = false;
    dontStrip = true;
    dontPatchELF = true;
  
    unpackPhase = ''
      runHook preUnpack
      dpkg-deb -x $src .
      runHook postUnpack
    '';
  
    installPhase =
      ''
  