anchor.diff:    '';
   
     doInstallCheck = true;
  +
     installCheckPhase = ''
       export HOME=$(mktemp -d)
       export SURGE_DISABLE_NETWORK_TESTS=TRUE
  
positive.code: { stdenv, lib, fetchurl, fetchFromGitHub, cmake, git, pkg-config, python3
  , cairo, libsndfile, libxcb, libxkbcommon, xcbutil, xcbutilcursor, xcbutilkeysyms, zenity
  , curl, rsync
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:   '';
  
    meta = with lib; {
      description = ''
        LV2 & VST3 synthesizer plug-in (previously released as Vember Audio
        Surge)
      '';
      homepage = "https://surge-synthesizer.github.io";
      license = licenses.gpl3;
      platforms = [ "x86_64-linux" ];
  