anchor.diff:      gdk_pixbuf
       glib
       gtk2
  +    gtk3
       libpulseaudio
       nspr
       nss
  
positive.code: { stdenv, alsaLib, atk, cairo, cups, dbus, dpkg, expat, fontconfig, freetype
  , fetchurl, GConf, gdk_pixbuf, glib, gtk2, libpulseaudio, makeWrapper, nspr
  , nss, pango, udev, xorg
  }:
  
  let
    version = "4.5.0";
  
    deps = [
      alsaLib
  
negative.code: 
    src = fetchurl {
      url = "https://github.com/MarshallOfSound/Google-Play-Music-Desktop-Player-UNOFFICIAL-/releases/download/v${version}/google-play-music-desktop-player_${version}_amd64.deb";
      sha256 = "0dyn2fxhcri9d9nmcprszs6yg79gsr09bjfzzb1p10yjmi77cj2g";
    };
  
    dontBuild = true;
  