diff --git a/pkgs/fcast/default.nix b/pkgs/fcast/default.nix
new file mode 100644
index 0000000..3919a72
--- /dev/null
+++ b/pkgs/fcast/default.nix
@@ -0,0 +1,202 @@
+{
+  lib,
+  buildNpmPackage,
+  cargo,
+  copyDesktopItems,
+  dbus,
+  electron_28,
+  fetchFromGitLab,
+  glib,
+  gnome,
+  gtk3,
+  jq,
+  libsecret,
+  makeDesktopItem,
+  makeWrapper,
+  moreutils,
+  napi-rs-cli,
+  nodejs_18,
+  patchutils_0_4_2,
+  pkg-config,
+  python3,
+  runCommand,
+  rustc,
+  rustPlatform,
+}: let
+  description = "A secure and free password manager for all of your devices";
+  icon = "bitwarden";
+  electron = electron_28;
+in
+  buildNpmPackage rec {
+    pname = "bitwarden-desktop";
+    version = "2024.3.0";
+
+    src = fetchFromGitLab {
+      owner = "videostreaming";
+      repo = "fcast";
+      rev = "b13d0f7e8150c279d377a78f89d338b7fc0f5539";
+      hash = "sha256-XEZB95GnfSy/wtTWpF8KlUQwyephUZmSLtbOwbcvd7g=";
+    };
+
+    patches = [
+      ./electron-builder-package-lock.patch
+    ];
+
+    # The nested package-lock.json from upstream is out-of-date, so copy the
+    # lock metadata from the root package-lock.json.
+    postPatch = ''
+      cat {,apps/desktop/src/}package-lock.json \
+        | ${lib.getExe jq} -s '
+          .[1].packages."".dependencies.argon2 = .[0].packages."".dependencies.argon2
+            | .[0].packages."" = .[1].packages.""
+            | .[1].packages = .[0].packages
+            | .[1]
+          ' \
+        | ${moreutils}/bin/sponge apps/desktop/src/package-lock.json
+    '';
+
+    nodejs = nodejs_18;
+
+    makeCacheWritable = true;
+    npmFlags = ["--legacy-peer-deps"];
+    npmWorkspace = "apps/desktop";
+    npmDepsHash = "sha256-EpZXA+GkmHl5eqwIPTGHJZqrpr6k8gXneJG+GXumlkc=";
+
+    cargoDeps = rustPlatform.fetchCargoTarball {
+      name = "${pname}-${version}";
+      inherit src;
+      patches =
+        map
+        (
+          patch:
+            runCommand
+            (builtins.baseNameOf patch)
+            {nativeBuildInputs = [patchutils_0_4_2];}
+            ''
+              < ${patch} filterdiff -p1 --include=${lib.escapeShellArg cargoRoot}'/*' > $out
+            ''
+        )
+        patches;
+      patchFlags = ["-p4"];
+      sourceRoot = "${src.name}/${cargoRoot}";
+      hash = "sha256-qAqEFlUzT28fw6kLB8d7U8yXWevAU+q03zjN2xWsGyI=";
+    };
+    cargoRoot = "apps/desktop/desktop_native";
+
+    env.ELECTRON_SKIP_BINARY_DOWNLOAD = "1";
+
+    nativeBuildInputs = [
+      cargo
+      copyDesktopItems
+      jq
+      makeWrapper
+      moreutils
+      napi-rs-cli
+      pkg-config
+      python3
+      rustc
+      rustPlatform.cargoCheckHook
+      rustPlatform.cargoSetupHook
+    ];
+
+    buildInputs = [
+      glib
+      gtk3
+      libsecret
+    ];
+
+    preBuild = ''
+      if [[ $(jq --raw-output '.devDependencies.electron' < package.json | grep -E --only-matching '^[0-9]+') != ${lib.escapeShellArg (lib.versions.major electron.version)} ]]; then
+        echo 'ERROR: electron version mismatch'
+        exit 1
+      fi
+    '';
+
+    postBuild = ''
+      pushd apps/desktop
+
+      # desktop_native/index.js loads a file of that name regarldess of the libc being used
+      mv desktop_native/desktop_native.* desktop_native/desktop_native.linux-x64-musl.node
+
+      npm exec electron-builder -- \
+        --dir \
+        -c.electronDist=${electron}/libexec/electron \
+        -c.electronVersion=${electron.version}
+
+      popd
+    '';
+
+    doCheck = true;
+
+    nativeCheckInputs = [
+      dbus
+      (gnome.gnome-keyring.override {useWrappedDaemon = false;})
+    ];
+
+    checkFlags = [
+      "--skip=password::password::tests::test"
+    ];
+
+    checkPhase = ''
+      runHook preCheck
+
+      pushd ${cargoRoot}
+      export HOME=$(mktemp -d)
+      export -f cargoCheckHook runHook _eval _callImplicitHook
+      export cargoCheckType=release
+      dbus-run-session \
+        --config-file=${dbus}/share/dbus-1/session.conf \
+        -- bash -e -c cargoCheckHook
+      popd
+
+      runHook postCheck
+    '';
+
+    installPhase = ''
+      runHook preInstall
+
+      mkdir $out
+
+      pushd apps/desktop/dist/linux-unpacked
+      mkdir -p $out/opt/Bitwarden
+      cp -r locales resources{,.pak} $out/opt/Bitwarden
+      popd
+
+      makeWrapper '${electron}/bin/electron' "$out/bin/bitwarden" \
+        --add-flags $out/opt/Bitwarden/resources/app.asar \
+        --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations}}" \
+        --set-default ELECTRON_IS_DEV 0 \
+        --inherit-argv0
+
+      pushd apps/desktop/resources/icons
+      for icon in *.png; do
+        dir=$out/share/icons/hicolor/"''${icon%.png}"/apps
+        mkdir -p "$dir"
+        cp "$icon" "$dir"/${icon}.png
+      done
+      popd
+
+      runHook postInstall
+    '';
+
+    desktopItems = [
+      (makeDesktopItem {
+        name = "bitwarden";
+        exec = "bitwarden %U";
+        inherit icon;
+        comment = description;
+        desktopName = "Bitwarden";
+        categories = ["Utility"];
+      })
+    ];
+
+    meta = {
+      changelog = "https://github.com/bitwarden/clients/releases/tag/${src.rev}";
+      inherit description;
+      homepage = "https://bitwarden.com";
+      license = lib.licenses.gpl3;
+      maintainers = with lib.maintainers; [amarshall kiwi];
+      platforms = ["x86_64-linux"];
+      mainProgram = "bitwarden";
+    };
+  }