diff --git a/debug/default.nix b/debug/default.nix
index 0a434d5..149f81f 100644
--- a/debug/default.nix
+++ b/debug/default.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation rec {
     lshw
     pciutils
     usbutils
+    vulkan-tools
     powertop
   ];
 }
diff --git a/development/default.nix b/development/default.nix
old mode 100644
new mode 100755
index bfafa74..d7deef5
--- a/development/default.nix
+++ b/development/default.nix
@@ -15,14 +15,45 @@ gcc11Stdenv.mkDerivation rec {
     jetbrains.idea-community
     scala_3
     moreutils
+    unzip
     hotspot
     cmakeWithGui
     gnumake
+    clang
     ccache
     cudatoolkit_11
     git
     python3
     linuxPackages.perf
+    sbt
+    cudaPackages.cudnn
+    (writeShellScriptBin "patch-cuda" "patchelf --set-rpath '/run/opengl-driver/lib:'$(patchelf --print-rpath $@) $@")
+    pkg-config
+    rustc
+    rustfmt
+    rust-analyzer
+    cargo
+    llvmPackages.bintools
+    alsa-lib
+    atk
+    cairo
+    dbus
+    gdk-pixbuf
+    glib
+    gtk3
+    pango
+    pkg-config
+    jetbrains.rust-rover
+    imgui
+    qt6.full
+    qtcreator
+    nlohmann_json
+#    qtwayland
   ] ;
-  shellHook = ''export CXXFLAGS="-march=native -O3"'';
+  shellHook = ''
+export CXXFLAGS="-march=native -O3"
+export PATH=$PATH:/run/current-system/sw/bin
+export LD_LIBRARY_PATH=${pkgs.libGL}/lib:${pkgs.libGLU}/lib:${pkgs.freeglut}/lib:${pkgs.xorg.libX11}/lib:${pkgs.stdenv.cc.cc.lib}/lib:${pkgs.cudatoolkit_11}/lib:${pkgs.cudaPackages.cudnn}/lib:${pkgs.cudatoolkit_11.lib}/lib:$LD_LIBRARY_PATH
+# export LD_DEBUG=libs
+'';
 }
diff --git a/development/nix-cmake b/development/nix-cmake
index b575373..7c084ff 100755
--- a/development/nix-cmake
+++ b/development/nix-cmake
@@ -1,4 +1,4 @@
-#! /usr/bin/env cached-nix-shell
+#! /usr/bin/env nix-shell
 #! nix-shell -p python3 -i python3
 
 # let's say you have a C++ project in Nix that you want to work on with CLion so that the Nix dependencies are available
@@ -25,7 +25,7 @@ cwd = shlex.quote(os.getcwd())
 cmd = 'cd ' + cwd + ' && cmake ' + ' '.join(args)
 
 os.chdir(scriptDir)
-os.execvp("cached-nix-shell", [
+os.execvp("nix-shell", [
   'nix-shell',
   '--pure',
   '--run', cmd
diff --git a/python/default.nix b/python/default.nix
new file mode 100644
index 0000000..6e8ab25
--- /dev/null
+++ b/python/default.nix
@@ -0,0 +1,23 @@
+let
+  pkgs = import <nixpkgs> {};
+#  nanomsg-py = ...build expression for this python library...;
+in pkgs.mkShell {
+  buildInputs = with pkgs; [
+    python3
+    python3.pkgs.requests
+    piper-tts
+    libopus
+    python3.pkgs.pip
+#    pkgs.python3.pkgs.simplemediawiki
+#    nanomsg-py
+  ];
+  shellHook = ''
+    # Tells pip to put packages into $PIP_PREFIX instead of the usual locations.
+    # See https://pip.pypa.io/en/stable/user_guide/#environment-variables.
+    export PIP_PREFIX=$(pwd)/_build/pip_packages
+    export PYTHONPATH="$PIP_PREFIX/${pkgs.python3.sitePackages}:$PYTHONPATH"
+    export PATH="$PIP_PREFIX/bin:$PATH"
+    unset SOURCE_DATE_EPOCH
+  '';
+}
+
diff --git a/rust/default.nix b/rust/default.nix
new file mode 100644
index 0000000..1069b0a
--- /dev/null
+++ b/rust/default.nix
@@ -0,0 +1,44 @@
+{ pkgs ? import <nixpkgs> {} }:
+  pkgs.mkShell rec {
+    buildInputs = with pkgs; [
+      clang
+      # Replace llvmPackages with llvmPackages_X, where X is the latest LLVM version (at the time of writing, 16)
+      llvmPackages.bintools
+      rustup
+      alsa-lib
+      atk
+      cairo
+      dbus
+      gdk-pixbuf
+      glib
+      gtk3
+      pango
+      pkg-config
+    ];
+    RUSTC_VERSION = pkgs.lib.readFile ./rust-toolchain;
+    # https://github.com/rust-lang/rust-bindgen#environment-variables
+    LIBCLANG_PATH = pkgs.lib.makeLibraryPath [ pkgs.llvmPackages_latest.libclang.lib ];
+    shellHook = ''
+      export PATH=$PATH:''${CARGO_HOME:-~/.cargo}/bin
+      export PATH=$PATH:''${RUSTUP_HOME:-~/.rustup}/toolchains/$RUSTC_VERSION-x86_64-unknown-linux-gnu/bin/
+      '';
+    # Add precompiled library to rustc search path
+    RUSTFLAGS = (builtins.map (a: ''-L ${a}/lib'') [
+      # add libraries here (e.g. pkgs.libvmi)
+    ]);
+    # Add glibc, clang, glib and other headers to bindgen search path
+    BINDGEN_EXTRA_CLANG_ARGS = 
+    # Includes with normal include path
+    (builtins.map (a: ''-I"${a}/include"'') [
+      # add dev libraries here (e.g. pkgs.libvmi.dev)
+      pkgs.glibc.dev 
+    ])
+    # Includes with special directory paths
+    ++ [
+      ''-I"${pkgs.llvmPackages_latest.libclang.lib}/lib/clang/${pkgs.llvmPackages_latest.libclang.version}/include"''
+      ''-I"${pkgs.glib.dev}/include/glib-2.0"''
+      ''-I${pkgs.glib.out}/lib/glib-2.0/include/''
+    ];
+
+      RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+  }
diff --git a/rust/rust-toolchain b/rust/rust-toolchain
new file mode 100644
index 0000000..d2628f6
--- /dev/null
+++ b/rust/rust-toolchain
@@ -0,0 +1 @@
+nightly-2024-02-21