diff --git a/default.nix b/default.nix
index 4ace7be..383ad89 100644
--- a/default.nix
+++ b/default.nix
@@ -3,10 +3,18 @@ self: super:
 {
   buildNimblePackage = super.callPackage ./pkgs/nim-packages/generic.nix { };
 
+  c2nim = super.callPackage ./pkgs/nim-packages/c2nim.nix { };
+
+  freetz-tools = super.callPackage ./pkgs/freetz-tools/default.nix { };
+
   gintro = super.callPackage ./pkgs/nim-packages/gintro/default.nix { };
 
   groupchat = super.callPackage ./pkgs/nim-packages/groupchat.nix { };
 
+  hid = super.callPackage ./pkgs/hid/default.nix { };
+  easyhid = super.callPackage ./pkgs/easyhid/default.nix { };
+  openphone = super.callPackage ./pkgs/openphone/default.nix { };
+
   shinto-cli = super.callPackage ./pkgs/shinto-cli { };
 
   ui = super.callPackage ./pkgs/nim-packages/ui.nix { };
diff --git a/pkgs/easyhid/default.nix b/pkgs/easyhid/default.nix
new file mode 100644
index 0000000..e706e97
--- /dev/null
+++ b/pkgs/easyhid/default.nix
@@ -0,0 +1,20 @@
+{ stdenv, python3, hidapi }:
+
+with python3.pkgs;
+
+buildPythonPackage rec {
+  pname = "easyhid";
+  version = "0.0.10";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "02f6csdlv61yns017zxshx2scyvw99g490svfih2g0w80b65v84m";
+  };
+
+  propagatedBuildInputs = [
+    cffi hidapi
+  ];
+
+  doCheck = false;
+}
+
diff --git a/pkgs/freetz-tools/default.nix b/pkgs/freetz-tools/default.nix
new file mode 100644
index 0000000..2dfd3b6
--- /dev/null
+++ b/pkgs/freetz-tools/default.nix
@@ -0,0 +1,61 @@
+{ stdenv, pkgconfig, autoconf, automake, file, git, libtool, perl, python,
+  unzip, imagemagick, bash, which, glibc, gettext, bison, flex, ncurses,
+  readline, acl, zlib, libcap }:
+
+with stdenv.lib;
+
+let
+  ncursesInc = makeSearchPathOutput "dev" "include" [ ncurses ];
+  zlibInc = makeSearchPathOutput "dev" "include" [ zlib ];
+  readlineInc = makeSearchPathOutput "dev" "include" [ readline ];
+  aclInc = makeSearchPathOutput "dev" "include" [ acl ];
+  libcapInc = makeSearchPathOutput "dev" "include" [ libcap ];
+in
+stdenv.mkDerivation rec {
+  name = "freetz-tools";
+  version = "0.1";
+
+  src = /home/christian/Downloads/Openwrt-Router/freetz;
+
+  patchPhase = ''
+    patchShebangs tools
+
+    substituteInPlace tools/check_prerequisites \
+      --replace "/sbin/ldconfig" "${glibc}/bin/ldconfig" \
+      --replace "/usr/include/ /usr/local/include/" "${ncursesInc} \
+                                                     ${zlibInc} \
+                                                     ${readlineInc} \
+                                                     ${aclInc} \
+                                                     ${libcapInc}"
+  '';
+
+  buildInputs = [
+    which
+    autoconf
+    automake
+    file
+    git
+    libtool
+    perl
+    python
+    unzip
+    imagemagick
+    gettext
+    pkgconfig
+    bison
+    flex
+    ncurses
+    readline
+  ];
+
+  buildPhase = ''
+    make tools
+  '';
+
+  installPhase = ''
+    install -D tools/unsquashfs4-avm-be $out/bin/unsquashfs4-avm-be
+    install -D tools/unsquashfs4-avm-le $out/bin/unsquashfs4-avm-le
+    install -D tools/mksquashfs4-avm-be $out/bin/mksquashfs4-avm-be
+    install -D tools/mksquashfs4-avm-le $out/bin/mksquashfs4-avm-le
+  '';
+}
diff --git a/pkgs/hid/default.nix b/pkgs/hid/default.nix
new file mode 100644
index 0000000..a4b0c87
--- /dev/null
+++ b/pkgs/hid/default.nix
@@ -0,0 +1,29 @@
+{ stdenv, python3, hidapi }:
+
+with python3.pkgs;
+
+buildPythonPackage rec {
+  pname = "hid";
+  version = "1.0.3";
+
+  NIX_HIDAPI_PATH = "${hidapi}/lib/";
+
+  patches = [ ./paths.patch ];
+
+  postPatch = ''
+    substituteInPlace hid/__init__.py \
+      --subst-var NIX_HIDAPI_PATH
+  '';
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0w2ns88garrk6vjz3i91v6xzmlavyscifx4vm49303khgl2dqgvl";
+  };
+
+  propagatedBuildInputs = [
+    hidapi
+  ];
+
+  doCheck = false;
+}
+
diff --git a/pkgs/hid/paths.patch b/pkgs/hid/paths.patch
new file mode 100644
index 0000000..0b432ac
--- /dev/null
+++ b/pkgs/hid/paths.patch
@@ -0,0 +1,13 @@
+diff --git a/hid/__init__.py b/hid/__init__.py
+index 0fcd3ba..d4f3f54 100644
+--- a/hid/__init__.py
++++ b/hid/__init__.py
+@@ -20,7 +20,7 @@
+ 
+ for lib in library_paths:
+     try:
+-        hidapi = ctypes.cdll.LoadLibrary(lib)
++        hidapi = ctypes.cdll.LoadLibrary(os.path.join('@NIX_HIDAPI_PATH@', lib))
+         break
+     except OSError:
+         pass
diff --git a/pkgs/nim-packages/c2nim.nix b/pkgs/nim-packages/c2nim.nix
new file mode 100644
index 0000000..06cc611
--- /dev/null
+++ b/pkgs/nim-packages/c2nim.nix
@@ -0,0 +1,13 @@
+{ stdenv, buildNimblePackage, fetchfromGitHub }:
+
+buildNimblePackage rec {
+  name = "c2nim-${version}";
+  version = "0.9.14";
+
+  src = fetchFromGitHub {
+    owner = "nim-lang";
+    repo = "c2nim";
+    rev = "774e48fbd4c9884389079ddf8427fdebefd0313d";
+    sha256 = "1rrabvlr703fmsz4rm12mq81bc2njm0wb36w24vclcyz5cd26191";
+  };
+}
diff --git a/pkgs/openphone/default.nix b/pkgs/openphone/default.nix
new file mode 100644
index 0000000..b2b1c5d
--- /dev/null
+++ b/pkgs/openphone/default.nix
@@ -0,0 +1,22 @@
+{ stdenv, python3, hid }:
+
+with python3.pkgs;
+
+buildPythonPackage rec {
+  pname = "openphone";
+  version = "0.1";
+  src = /home/christian/projects/OpenPhone2;
+
+  propagatedBuildInputs = [
+    hid
+  ];
+
+  meta = with stdenv.lib; {
+    homepage = "https://ulrich.earth/code/OpenPhone";
+    description = "Open source desk telephone";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ royneary ];
+  };
+
+  doCheck = false;
+}