anchor.diff:  
     meta = with stdenv.lib; {
       description = "XMPP (Jabber) client";
  -    maintainers = with maintainers; [ orivej ];
  +    maintainers = with maintainers; [ orivej misuzu ];
       license = licenses.gpl2;
       platforms = platforms.linux;
     };
  
positive.code: { stdenv, fetchFromGitHub, cmake
  , qtbase, qtmultimedia, qtx11extras, qttools, qtwebengine
  , libidn, qca2-qt5, qtkeychain, libXScrnSaver, hunspell
  , libgcrypt, libotr, html-tidy, libgpgerror, libsignal-protocol-c
  }:
  
  stdenv.mkDerivation rec {
    pname = "psi-plus";
    version = "1.4.904";
  
    src = fetchFromGitHub {
      owner = "psi-plus";
      repo = "psi-plus-snapshots";
      rev = version;
      sha256 = "1bs7yk3qp91sm8nb9gna8vm59381afn1wfs7aii9yi29bhx6fw9h";
    };
  
    resources = fetchFromGitHub {
      owner = "psi-plus";
      repo = "resources";
      rev = "182c92ca0bcc055579d8c91bccba9efe157e77a9";
      sha256 = "06k7q63cxpifpzjnlw1snclkr2mwf9fh71cgfd40n7jgzswzwhpb";
    };
  
    postUnpack = ''
  
negative.code:     "-DENABLE_PLUGINS=ON"
    ];
  
    nativeBuildInputs = [ cmake wrapQtAppsHook ];
  
    buildInputs = [
      qtbase qtmultimedia qtx11extras qttools qtwebengine
      libidn qca2-qt5 libsecret libXScrnSaver hunspell
      libgcrypt libotr html-tidy libgpgerror libsignal-protocol-c
    ];
  
  