anchor.diff: -{ stdenv, fetchFromGitHub, pkgconfig, python2Packages, makeWrapper
  -, fetchpatch
  +{ stdenv, fetchFromGitHub, pkgconfig, python3Packages, makeWrapper
   , bash, libsamplerate, libsndfile, readline, eigen, celt
   , wafHook
   # Darwin Dependencies
  
positive.code: in
  stdenv.mkDerivation rec {
    name = "${prefix}jack2-${version}";
    version = "1.9.13";
  
    src = fetchFromGitHub {
      owner = "jackaudio";
      repo = "jack2";
      rev = "v${version}";
      sha256 = "1dnq75ylcv3npsyvzzkj0g8mdnzwis1whc2pk6s5hkcc1bgvv2xy";
    };
  
    nativeBuildInputs = [ pkgconfig python makeWrapper wafHook ];
  
negative.code: 
  with stdenv.lib;
  let
    inherit (python3Packages) python dbus-python;
    shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (stdenv.lib.meta.platformMatch stdenv.hostPlatform) pkg.meta.platforms then pkg else null;
  
    libOnly = prefix == "lib";
  