anchor.diff:  
       outputHashAlgo = "sha256";
       outputHashMode = "recursive";
  -    outputHash = "195ysv9l861y9d1lvmvi7wmk172ynlba9n233blpaigq88cjn208";
  +    outputHash = "sha256-4yHN5hYLjatni8seLOHyuEVnxOdNVia6rY3oPewR+20=";
     };
   
   in stdenv.mkDerivation rec {
     inherit pname version src;
   
     buildPhase = ''
  -    cd main
  -    mvn -Prelease package --offline -Dmaven.repo.local=$(cp -dpR ${deps}/.m2 ./ && chmod +w -R .m2 && pwd)/.m2
  +    mvn -Plinux package --offline -Dmaven.repo.local=$(cp -dpR ${deps}/.m2 ./ && chmod +w -R .m2 && pwd)/.m2
     '';
   
     installPhase = ''
  -    mkdir -p $out/bin/ $out/usr/share/cryptomator/libs/
  +    mkdir -p $out/bin/ $out/share/cryptomator/libs/ $out/share/cryptomator/mods/
   
  -    cp buildkit/target/libs/* buildkit/target/linux-libs/* $out/usr/share/cryptomator/libs/
  +    cp target/libs/* $out/share/cryptomator/libs/
  +    cp target/mods/* target/cryptomator-*.jar $out/share/cryptomator/mods/
  +
  +    # The bundeled jffi.so dosn't work on nixos and causes a segmentation fault
  +    # we thus replace it with a version build by nixos
  +    rm $out/share/cryptomator/libs/jff*.jar
  +    cp -f ${jffi}/share/java/jffi-complete.jar $out/share/cryptomator/libs/
   
       makeWrapper ${jre}/bin/java $out/bin/cryptomator \
  -      --add-flags "-classpath '$out/usr/share/cryptomator/libs/*'" \
  +      --add-flags "--class-path '$out/share/cryptomator/libs/*'" \
  +      --add-flags "--module-path '$out/share/cryptomator/mods'" \
         --add-flags "-Dcryptomator.settingsPath='~/.config/Cryptomator/settings.json'" \
  -      --add-flags "-Dcryptomator.ipcPortPath='~/.config/Cryptomator/ipcPort.bin'" \
  +      --add-flags "-Dcryptomator.ipcSocketPath='~/.config/Cryptomator/ipc.socket'" \
         --add-flags "-Dcryptomator.logDir='~/.local/share/Cryptomator/logs'" \
         --add-flags "-Dcryptomator.mountPointsDir='~/.local/share/Cryptomator/mnt'" \
         --add-flags "-Djdk.gtk.version=3" \
         --add-flags "-Xss20m" \
         --add-flags "-Xmx512m" \
  -      --add-flags "org.cryptomator.launcher.Cryptomator" \
  -      --prefix PATH : "$out/usr/share/cryptomator/libs/:${lib.makeBinPath [ jre glib ]}" \
  +      --add-flags "-Djavafx.embed.singleThread=true " \
  +      --add-flags "-Dawt.useSystemAAFontSettings=on" \
  +      --add-flags "--module org.cryptomator.desktop/org.cryptomator.launcher.Cryptomator" \
  +      --prefix PATH : "$out/share/cryptomator/libs/:${lib.makeBinPath [ jre glib ]}" \
         --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ fuse ]}" \
         --set JAVA_HOME "${jre.home}"
   
       # install desktop entry and icons
  -    cp -r ${icons}/resources/appimage/AppDir/usr/* $out/
  +    cp -r ${src}/dist/linux/appimage/resources/AppDir/usr/* $out/
     '';
   
     nativeBuildInputs = [ autoPatchelfHook maven makeWrapper wrapGAppsHook jdk ];
  -  buildInputs = [ fuse packer jre glib ];
  +  buildInputs = [ fuse jre glib jffi ];
   
     meta = with lib; {
       description = "Free client-side encryption for your cloud files";
  
positive.code:     inherit src;
  
      nativeBuildInputs = [ jdk maven ];
  
      buildPhase = ''
        cd main
        while mvn -Prelease package -Dmaven.repo.local=$out/.m2 -Dmaven.wagon.rto=5000; [ $? = 1 ]; do
          echo "timeout, restart maven to continue downloading"
        done
      '';
  
negative.code: { lib, stdenv, fetchFromGitHub
  , autoPatchelfHook
  , fuse, jffi
  , maven, jdk, jre, makeWrapper, glib, wrapGAppsHook
  }:
  
  let
    pname = "cryptomator";
    version = "1.6.5";
  
    src = fetchFromGitHub {
      owner = "cryptomator";
      repo = "cryptomator";
      rev = version;
      sha256 = "sha256-6Z1GwrOsjjG546ZS+v/q4WL4tHgYPvMga8x4DY+unJs=";
    };
  
    # perform fake build to make a fixed-output derivation out of the files downloaded from maven central (120MB)
  