anchor.diff:  { lib
   , stdenv
  +, stdenvNoCC
   , fetchFromGitHub
   , fetchzip
   , writeShellScript
  
positive.code: 
  let
    pname = "yabai";
    version = "4.0.2";
  
    test-version = testers.testVersion {
      package = yabai;
  
negative.code:       owner = "koekeishiya";
        repo = "yabai";
        rev = "v${version}";
        sha256 = "sha256-TeT+8UAV2jR60XvTs4phkp611Gi0nzLmQnezLA0xb44=";
      };
  
      nativeBuildInputs = [
  