diff --git a/default.nix b/default.nix
index 661139f..96d7af5 100644
--- a/default.nix
+++ b/default.nix
@@ -10,7 +10,11 @@
 
 let
   wsgiserver = pkgs.callPackage ./pkgs/python-modules/wsgiserver { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
-in
+
+  opencv-python-headless = pkgs.callPackage ./pkgs/python-modules/opencv-python-headless { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
+  pylzma = pkgs.callPackage ./pkgs/python-modules/pylzma { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
+  python-mpv = pkgs.callPackage ./pkgs/python-modules/python-mpv { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
+in 
 {
   # The `lib`, `modules`, and `overlay` names are special
   lib = import ./lib { inherit pkgs; }; # functions
@@ -39,6 +43,8 @@ in
   # radical-native = pkgs.callPackage ./pkgs/radical-native { };
   photini = pkgs.libsForQt5.callPackage ./pkgs/photini { };
 
+  hydrus = pkgs.libsForQt5.callPackage ./pkgs/hydrus { inherit pylzma;};
+
   metapixel = pkgs.callPackage ./pkgs/metapixel { };
 
   plotbitrate = pkgs.callPackage ./pkgs/plotbitrate { };
diff --git a/pkgs/hydrus/default.nix b/pkgs/hydrus/default.nix
new file mode 100644
index 0000000..8603ebe
--- /dev/null
+++ b/pkgs/hydrus/default.nix
@@ -0,0 +1,86 @@
+{ mkDerivation, fetchFromGitHub, python3, python3Packages, wrapGAppsHook, qt5, pylzma, ffmpeg, miniupnpc }:
+let
+  pythonEnv = python3.withPackages (pythonPackages: with pythonPackages; [
+    beautifulsoup4
+    chardet
+    cloudscraper
+    html5lib
+    lxml
+    lz4
+    nose
+    numpy
+    pillow
+    psutil
+    pylzma
+    pyopenssl
+    pyside2
+    pysocks
+    pyyaml
+    qtpy
+    requests
+    send2trash
+    service-identity
+    six
+    twisted
+
+    opencv4
+  ]);
+in
+  mkDerivation rec {
+    pname = "hydrus";
+    version = "432";
+
+    src = fetchFromGitHub {
+      owner = "hydrusnetwork";
+      repo = "hydrus";
+      rev = "v${version}";
+      sha256 = "1i3canx007pdw6grwjacx7abmlk0fvj8aygrzqsilay2y2gpivmm";
+    };
+
+    format = "other";
+    dontWrapQtApps = true;
+    dontWrapGApps = true;
+
+    
+    makeWrapperArgs = [
+      "\${gappsWrapperArgs[@]}"
+      "\${qtWrapperArgs[@]}"
+    ];
+
+    preFixup = ''
+      wrapPythonPrograms
+    '';
+
+    buildPhase = ''
+      runHook preBuild
+
+      python -OO -m compileall -f .
+
+      runHook postBuild
+    '';
+
+    installPhase = ''
+     runHook preInstall
+
+      mkdir -p "$out/opt/hydrus"
+      cp -r help hydrus static client.pyw server.py "$out/opt/hydrus/"
+      chmod a+x "$out/opt/hydrus/server.py"
+
+      mkdir -p $out/opt/hydrus/bin
+      ln -s "${miniupnpc}/bin/upnpc" "$out/opt/hydrus/bin/upnpc_linux"
+      ln -s "${ffmpeg}/bin/ffmpeg" "$out/opt/hydrus/bin/ffmpeg"
+
+      mkdir -p "$out/bin"
+
+      runHook postInstall
+    '';
+
+    nativeBuildInputs = [ qt5.wrapQtAppsHook python3Packages.wrapPython ];
+    buildInputs = [ ffmpeg miniupnpc ];
+    propagatedBuildInputs = [ pythonEnv ];    
+
+    postInstall = ''
+      echo wrapping
+      wrapQtApp $out/opt/hydrus/client.pyw --prefix PYTHONPATH : $PYTHONPATH
+    '';
+  }
diff --git a/pkgs/python-modules/pylzma/default.nix b/pkgs/python-modules/pylzma/default.nix
new file mode 100644
index 0000000..4b431b0
--- /dev/null
+++ b/pkgs/python-modules/pylzma/default.nix
@@ -0,0 +1,21 @@
+{ lib, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "pylzma";
+  version = "0.5.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "074anvhyjgsv2iby2ql1ixfvjgmhnvcwjbdz8gk70xzkzcm1fx5q";
+  };
+
+  
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://github.com/opencv/opencv-python";
+    description = "Unofficial pre-built CPU-only OpenCV packages for Python";
+    license = licenses.mit;
+  };
+
+}
diff --git a/pkgs/synapse-admin/default.nix b/pkgs/synapse-admin/default.nix
index a811fe7..477510e 100644
--- a/pkgs/synapse-admin/default.nix
+++ b/pkgs/synapse-admin/default.nix
@@ -2,13 +2,13 @@
 
 mkYarnPackage {
   pname = "synapse-admin";
-  version = "0.4.1";
+  version = "0.7.0";
   
   src = fetchFromGitHub {
     owner = "Awesome-Technologies";
     repo = "synapse-admin";
-    rev = "0.4.1";
-    sha256 = "1ig9pb2cqpg4hgn3mm765sc57fn9c00xz1hpxvrvdyhwlvscs95i";
+    rev = "0.7.0";
+    sha256 = "00vqqgchzff231s5kxxsv3yalnmr16q86ycj2nj1m728d3jmi0k1";
   };
 
   buildPhase = ''