diff --git a/default.nix b/default.nix
index 46912b9..b64075d 100644
--- a/default.nix
+++ b/default.nix
@@ -13,7 +13,6 @@ let
 
 
 #  opencv-python-headless = pkgs.callPackage ./pkgs/python-modules/opencv-python-headless { 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 
 rec {
   # The `lib`, `modules`, and `overlay` names are special
@@ -46,9 +45,6 @@ rec {
   # radical-native = pkgs.callPackage ./pkgs/radical-native { };
   photini = pkgs.libsForQt5.callPackage ./pkgs/photini { };
 
-  pylzma = pkgs.callPackage ./pkgs/python-modules/pylzma { buildPythonPackage = pkgs.python3Packages.buildPythonPackage; fetchPypi = pkgs.python3Packages.fetchPypi; };
-  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
deleted file mode 100644
index 0ed195b..0000000
--- a/pkgs/hydrus/default.nix
+++ /dev/null
@@ -1,85 +0,0 @@
-{ 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 = "447";
-
-    src = fetchFromGitHub {
-      owner = "hydrusnetwork";
-      repo = "hydrus";
-      rev = "v${version}";
-      sha256 = "sha256-nxLU190d63I26cRwNMYzed+5e/Sqg1RXEiLwwZfONik=";
-    };
-
-    format = "other";
-    dontWrapQtApps = true;
-    dontWrapGApps = true;
-
-    
-    makeWrapperArgs = [
-      "\${gappsWrapperArgs[@]}"
-      "\${qtWrapperArgs[@]}"
-    ];
-
-    preFixup = ''
-      wrapPythonPrograms
-    '';
-
-    buildPhase = ''
-      runHook preBuild
-
-      python -OO -m compileall -f .
-
-      runHook postBuild
-    '';
-
-    installPhase = ''
-     runHook preInstall
-
-      mkdir -p "$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 = ''
-      makeQtWrapper $out/opt/hydrus/client.pyw $out/bin/hydrus-client  --prefix PYTHONPATH : $PYTHONPATH
-    '';
-  }
diff --git a/pkgs/python-modules/pylzma/default.nix b/pkgs/python-modules/pylzma/default.nix
deleted file mode 100644
index 4b431b0..0000000
--- a/pkgs/python-modules/pylzma/default.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{ 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/python-modules/python-mpv/default.nix b/pkgs/python-modules/python-mpv/default.nix
deleted file mode 100644
index 643c2a8..0000000
--- a/pkgs/python-modules/python-mpv/default.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{ lib, buildPythonPackage, fetchPypi }:
-
-buildPythonPackage rec {
-  pname = "python-mpv";
-  version = "0.5.2";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "08v8kv5jn741v1r4fi8m7haxxphw74452nc8f4n60hglxxhsxiqh";
-  };
-
-  
-  doCheck = false;
-
-  meta = with lib; {
-    homepage = "https://github.com/jaseg/python-mpv";
-    description = "python-mpv is a ctypes-based python interface to the mpv media player. It gives you more or less full control of all features of the player, just as the lua interface does";
-    license = licenses.agpl3Only;
-  };
-
-}