diff --git a/flake.nix b/flake.nix
index fb53ea6..2f5d7ec 100644
--- a/flake.nix
+++ b/flake.nix
@@ -70,13 +70,11 @@
         attic-client = final.attic.override { clientOnly = true; };
         bladeenc = final.callPackage ./packages/bladeenc { };
         cups-dymo-patched = final.callPackage ./packages/cups-dymo { };
-        cynthion = final.callPackage ./packages/cynthion { };
         exhale = final.callPackage ./packages/exhale { };
         gbeplus = final.callPackage ./packages/gbeplus { };
         hactoolnet = final.callPackage ./packages/hactoolnet { };
         ipsw = final.callPackage ./packages/ipsw { };
         jlink = final.callPackage ./packages/jlink { };
-        packetry = final.callPackage ./packages/packetry { };
         stlink-tool = final.callPackage ./packages/stlink-tool { };
         xwin = final.callPackage ./packages/xwin { };
         zephyrPackages = final.callPackage ./packages/zephyr { };
diff --git a/packages/cynthion/default.nix b/packages/cynthion/default.nix
deleted file mode 100644
index 0fbe7cb..0000000
--- a/packages/cynthion/default.nix
+++ /dev/null
@@ -1,258 +0,0 @@
-{
-  fetchFromGitHub,
-  python3,
-  zsh,
-  stdenv,
-  yosys,
-  nextpnr,
-  trellis,
-}:
-
-let
-  pyfwup = python3.pkgs.buildPythonPackage rec {
-    pname = "pyfwup";
-    version = "0.5.0";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = pname;
-      rev = version;
-      hash = "sha256-HZaR7X19kWb8w/VcnRHReGPkUBQ/u89BjmkTPpayoxE=";
-    };
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    pyproject = true;
-
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-
-    propagatedBuildInputs = with python3.pkgs; [
-      pyusb
-      tqdm
-    ];
-  };
-
-  pygreat = python3.pkgs.buildPythonPackage rec {
-    pname = "pygreat";
-    version = "2024.0.2";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = "libgreat";
-      rev = "v${version}";
-      hash = "sha256-yYp+2y4QIOykkrObWaXbZMMc2fsRn/+tGWqySA7V534=";
-    };
-
-    sourceRoot = "${src.name}/host";
-
-    postPatch = ''
-      substituteInPlace pyproject.toml --replace '"backports.functools_lru_cache",' ""
-      substituteInPlace pygreat/comms.py --replace "from backports.functools_lru_cache import lru_cache as memoize_with_lru_cache" "from functools import lru_cache as memoize_with_lru_cache"
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs = with python3.pkgs; [
-      pyusb
-      future
-    ];
-  };
-
-  amaranth = python3.pkgs.amaranth.overrideAttrs (attrs: rec {
-    version = "0.4.1";
-    src = fetchFromGitHub {
-      owner = "amaranth-lang";
-      repo = "amaranth";
-      rev = "refs/tags/v${version}";
-      hash = "sha256-VMgycvxkphdpWIib7aZwh588En145RgYlG2Zfi6nnDo=";
-    };
-  });
-
-  apollo-fpga = python3.pkgs.buildPythonPackage rec {
-    pname = "apollo";
-    version = "1.1.0";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = pname;
-      rev = "v${version}";
-      hash = "sha256-9BoHGdqjnWkP83zXdjzyoAhYB6n7SJ/zlr8pvqb+9kg=";
-    };
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs = with python3.pkgs; [
-      deprecation
-      importlib-resources
-      pyusb
-      pyvcd
-      prompt-toolkit
-      pyxdg
-    ];
-
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-  };
-  usb-protocol = python3.pkgs.buildPythonPackage rec {
-    pname = "usb-protocol";
-    version = "0.9.1";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = "python-usb-protocol";
-      rev = version;
-      hash = "sha256-CYbXs/SRC1FAVEzfw0gwf6U0qQ9Q34nyuj5yfjHfDn8=";
-    };
-
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs = with python3.pkgs; [ construct ];
-  };
-  luna-usb = python3.pkgs.buildPythonPackage rec {
-    pname = "luna-usb";
-    version = "0.1.1";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = "luna";
-      rev = version;
-      hash = "sha256-81GJF3QLERCmvZXYlQvb1vzJFeGMSMNMwuGoaBJE8Zg=";
-    };
-
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs =
-      [
-        amaranth
-        usb-protocol
-      ]
-      ++ (with python3.pkgs; [
-        libusb1
-        pyserial
-        pyusb
-        pyvcd
-      ]);
-  };
-  luna-soc = python3.pkgs.buildPythonPackage rec {
-    pname = "luna-soc";
-    version = "0.2.0";
-
-    src = fetchFromGitHub {
-      owner = "greatscottgadgets";
-      repo = pname;
-      rev = version;
-      hash = "sha256-P8P32hM1cVXENcDpCrmPe8BvkMCWdeEgHwbIU94uLe8=";
-    };
-
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs = [ luna-usb ];
-  };
-
-  version = "0.1.5";
-  src = fetchFromGitHub {
-    owner = "greatscottgadgets";
-    repo = "cynthion";
-    rev = version;
-    hash = "sha256-Lx0greHNIE6BAgCp9zZtUx+N+oMMaBZszZLknVZa7TU=";
-  };
-  cynthion = python3.pkgs.buildPythonApplication {
-    pname = "cynthion";
-    inherit version src;
-
-    sourceRoot = "${src.name}/cynthion/python";
-
-    postPatch = ''
-      substituteInPlace pyproject.toml \
-        --replace-fail '"setuptools-git-versioning<2"' "" \
-        --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
-    '';
-
-    postInstall = ''
-      install -D assets/54-cynthion.rules $out/lib/udev/rules.d/54-cynthion.rules
-    '';
-
-    pyproject = true;
-    nativeBuildInputs = with python3.pkgs; [ setuptools ];
-    propagatedBuildInputs =
-      [
-        amaranth
-        apollo-fpga
-        pyfwup
-        pygreat
-        luna-usb
-        luna-soc
-      ]
-      ++ (with python3.pkgs; [
-        future
-        libusb1
-        prompt-toolkit
-        pyserial
-        pyusb
-        tabulate
-        tomli
-        tqdm
-      ]);
-  };
-  cynthion-bitstreams = stdenv.mkDerivation rec {
-    pname = "cynthion-bistreams";
-    inherit version src;
-
-    sourceRoot = "${src.name}/cynthion/python";
-    postPatch = ''
-      substituteInPlace Makefile --replace-fail '/bin/zsh' '${zsh}/bin/zsh'
-      rm -r assets
-      mkdir assets
-    '';
-
-    nativeBuildInputs = [
-      python3
-      cynthion
-      yosys
-      nextpnr
-      trellis
-    ];
-
-    buildPhase = ''
-      make bitstreams
-    '';
-
-    installPhase = ''
-      mv assets $out
-    '';
-  };
-in
-cynthion.overrideAttrs (attrs: {
-  postPatch =
-    attrs.postPatch
-    + ''
-      ln -s ${cynthion-bitstreams}/* assets
-    '';
-})
diff --git a/packages/packetry/default.nix b/packages/packetry/default.nix
deleted file mode 100644
index 6ca128b..0000000
--- a/packages/packetry/default.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  rustPlatform,
-  fetchFromGitHub,
-  pkg-config,
-  gtk4,
-  pango,
-}:
-
-rustPlatform.buildRustPackage rec {
-  pname = "packetry";
-  version = "unstable-2024-07-08";
-
-  src = fetchFromGitHub {
-    owner = "greatscottgadgets";
-    repo = pname;
-    rev = "dffa1bd671ed22cd0b1cdd07c10d1916bea60ba5";
-    hash = "sha256-UOn3GevMDRC88MgK7YeIl9AOo6wqRSekA5pLufH3u1k=";
-  };
-
-  cargoHash = "sha256-sh3m0AJpR/4w+gqxz84HF5FvvwOHP0G+/GM+X7ep94o=";
-
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [
-    gtk4
-    pango
-  ];
-
-  # Failures from fontconfig in tests
-  doCheck = false;
-}