anchor.diff: -{ lib, stdenv
  +{ stdenv
   , alsaLib
  +, curl
   , fetchFromGitHub
  +, fftwFloat
   , freetype
  +, glib
  +, lib
   , libGL
   , libX11
   , libXcursor
   , libXext
  +, libXinerama
  +, libXrandr
   , libXrender
  +, libgcc
  +, libglvnd
  +, libsecret
   , meson
   , ninja
   , pkg-config
  
positive.code:         pitchedDelay
          refine
          stereosourceseparation
          tal-dub-3
          tal-filter
          tal-filter-2
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "distrho-ports";
    version = "2021-03-15";
  
    src = fetchFromGitHub {
      owner = "DISTRHO";
      repo = "DISTRHO-Ports";
      rev = version;
      sha256 = "00fgqwayd20akww3n2imyqscmyrjyc9jj0ar13k9dhpaxqk2jxbf";
    };
  
    nativeBuildInputs = [ pkg-config meson ninja ];
  
    buildInputs = [
      alsaLib
      curl
      fftwFloat
      freetype
      glib
      libGL
      libX11
      libXcursor
      libXext
      libXinerama
      libXrandr
      libXrender
      libgcc
      libglvnd
      libsecret
    ];
  
    meta = with lib; {
  