anchor.diff:  in
   mkDerivation rec {
     pname = "mirage";
  -  version = "0.5.2";
  +  version = "0.6.4";
   
     src = fetchFromGitHub {
       owner = "mirukana";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "0i891fafdncdz1xg6nji80jb86agsrbdvai9nwf1yy126q7piryv";
  +    sha256 = "15x0x2rf4fzsd0zr84fq3j3ddzkgc5il8s54jpxk8wl4ah03g4nv";
       fetchSubmodules = true;
     };
   
  
positive.code:       "''${qtWrapperArgs[@]}"
      '';
  
    meta = with lib; {
      description = "A fancy, customizable, keyboard-operable Qt/QML+Python Matrix chat client for encrypted and decentralized communication";
      homepage = "https://github.com/mirukana/mirage";
      license = licenses.lgpl3;
      maintainers = with maintainers; [ colemickens ];
      inherit (qtbase.meta) platforms;
      inherit version;
    };
  
negative.code: { stdenv, mkDerivation, fetchFromGitHub
  , qmake, pkgconfig, olm, wrapQtAppsHook
  , qtbase, qtquickcontrols2, qtkeychain, qtmultimedia, qttools, qtgraphicaleffects
  , python3Packages, pyotherside, libXScrnSaver
  }:
  
  let
  