anchor.diff:      owner = "elementary";
       repo = repoName;
       rev = version;
  -    sha256 = "16xp8gfgpyz9xpjsxm6jlk4skkknj65g0q4x0qvw9sg9f1p6a514";
  -  };
  -
  -  passthru = {
  -    updateScript = nix-update-script {
  -      attrPath = "pantheon.${pname}";
  -    };
  +    sha256 = "sha256-+RQUiJLuCIbmcbtsOCfF9HYFrxtldZMbg2vg/a/IOaY=";
     };
   
     nativeBuildInputs = [
  
positive.code:     patchShebangs meson/post_install.py
    '';
  
    meta = with lib; {
      description = "Desktop calendar app designed for elementary OS";
      homepage = "https://github.com/elementary/calendar";
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "elementary-calendar";
    version = "6.0.3";
  
    repoName = "calendar";
  
  