diff --git a/hosts/default/apps/crossover.nix b/hosts/default/apps/crossover.nix
new file mode 100644
index 0000000..2b7f2d3
--- /dev/null
+++ b/hosts/default/apps/crossover.nix
@@ -0,0 +1,213 @@
+# https://github.com/NixOS/nixpkgs/issues/209545
+
+{
+  lib,
+  stdenv,
+  fetchurl,
+  dpkg,
+  autoPatchelfHook,
+  makeWrapper,
+  pkgs,
+  wrapGAppsHook,
+  gobject-introspection,
+  glibc_multi,
+  gsettings-desktop-schemas,
+}:
+
+let
+  gds = gsettings-desktop-schemas;
+  # Create LSB Release File
+  lsbRelease = pkgs.writeText "lsb-release" ''
+    DISTRIB_ID=nixos
+    DISTRIB_RELEASE=${pkgs.lib.version}
+    DISTRIB_CODENAME=nixos
+    DISTRIB_DESCRIPTION="NixOS"
+  '';
+
+  # Remove Python Ads
+  pythonSetup = pkgs.writeText "crossover-python-setup.py" ''
+    import warnings
+    import locale
+    import os
+
+    # Skip Ads
+    warnings.filterwarnings("ignore", category=DeprecationWarning, module="fileupdate")
+    warnings.filterwarnings("ignore", category=DeprecationWarning, module="distversion")
+    warnings.filterwarnings("ignore", category=DeprecationWarning, module="multiprocessing.popen_fork")
+
+    # Local
+    try:
+        locale.setlocale(locale.LC_ALL, "")
+    except:
+        locale.setlocale(locale.LC_ALL, "C")
+  '';
+
+  # Script for install crossover
+  setupScript = pkgs.writeScript "setup-crossover.sh" ''
+        #!${pkgs.bash}/bin/bash
+        set -e
+        
+        mkdir -p "$HOME/.cxoffice"
+        mkdir -p "$HOME/.local/share/cxoffice"
+        mkdir -p "$HOME/.local/share/applications/cxoffice"
+        mkdir -p "$HOME/.local/share/icons"
+        mkdir -p "$HOME/.cache/cxoffice"
+        
+        if [ ! -f "$HOME/.local/share/cxoffice/crossover.conf" ]; then
+          echo "Create crossover.conf..."
+          cat > "$HOME/.local/share/cxoffice/crossover.conf" << EOF
+    [CrossOver]
+    autoinstall=true
+    check_for_updates=false
+    EOF
+        fi
+        
+        chmod -R u+rw "$HOME/.cxoffice"
+        chmod -R u+rw "$HOME/.local/share/cxoffice"
+        chmod -R u+rw "$HOME/.local/share/applications/cxoffice"
+        chmod -R u+rw "$HOME/.cache/cxoffice"
+        
+  '';
+in
+stdenv.mkDerivation rec {
+  pname = "crossover";
+  version = "22.0.1-1";
+
+  src = fetchurl {
+    url = "https://media.codeweavers.com/pub/crossover/cxlinux/demo/crossover_${version}.deb";
+    sha256 = "sha256-0wpM/4LCfjeZLgt0ECGdRuL3YPE0gQ/2otzUkJ9B/dY=";
+  };
+
+  nativeBuildInputs = [
+    dpkg
+    autoPatchelfHook
+    wrapGAppsHook
+    gobject-introspection
+    makeWrapper
+    pkgs.unzip
+  ];
+
+  buildInputs = [
+    # graphics
+    pkgs.gtk3
+    pkgs.gtkdialog
+    pkgs.vte
+    pkgs.libnotify
+    pkgs.shared-mime-info
+
+    # System
+    glibc_multi
+    pkgs.glibc.dev
+    pkgs.libxcrypt-legacy
+
+    # Audio
+    pkgs.alsa-lib
+    pkgs.alsa-plugins
+    pkgs.pulseaudio
+    pkgs.openal
+
+    # Multimedia
+    pkgs.gst_all_1.gstreamer
+    pkgs.gst_all_1.gst-plugins-base
+    pkgs.gst_all_1.gst-plugins-good
+    pkgs.gst_all_1.gst-plugins-ugly
+
+    # Network
+    pkgs.gnutls
+    pkgs.libgpg-error
+    pkgs.openldap
+    pkgs.openssl
+    pkgs.openssl.dev
+    pkgs.libpcap
+    pkgs.cacert
+
+    # Image
+    pkgs.libgphoto2
+    pkgs.sane-backends
+    pkgs.cups
+
+    # Other
+    pkgs.gmp
+    pkgs.libunwind
+    pkgs.ocl-icd
+    pkgs.vulkan-loader
+    pkgs.sqlite
+    pkgs.desktop-file-utils
+
+    # Python
+    (pkgs.python3.withPackages (
+      p: with p; [
+        pygobject3
+        gst-python
+        dbus-python
+        pycairo
+        requests
+        urllib3
+      ]
+    ))
+  ];
+
+  runtimeDependencies = [
+    pkgs.vulkan-loader
+    pkgs.cups.lib
+    pkgs.openssl
+  ];
+
+  unpackCmd = "dpkg -x $src source";
+
+  autoPatchelfIgnoreMissingDeps = [
+    "libcapi20.so.3"
+    "libpcap.so.0.8"
+  ];
+
+  preFixup = ''
+    gappsWrapperArgs+=(
+      --prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath buildInputs}
+      --prefix GST_PLUGIN_PATH : "$GST_PLUGIN_SYSTEM_PATH_1_0"
+      --prefix VK_LAYER_PATH : ${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d
+      --set OPENSSL_CONF "${pkgs.openssl.out}/etc/ssl/openssl.cnf"
+      --set SSL_CERT_FILE "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
+      --prefix PATH : ${
+        lib.makeBinPath [
+          pkgs.openssl
+          pkgs.desktop-file-utils
+        ]
+      }
+      --set PYTHONWARNINGS "ignore"
+      --set PYTHONSTARTUP "${pythonSetup}"
+      --set GSETTINGS_SCHEMA_DIR "${gds}/share/gsettings-schemas/${gds.pname}-${gds.version}/glib-2.0/schemas"
+      --set CXOFFICE_HOME "$HOME/.cxoffice"
+      --set XDG_DATA_HOME "$HOME/.local/share"
+      --set XDG_CACHE_HOME "$HOME/.cache"
+    )
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/{bin,opt,usr,etc,libexec}
+    cp -r opt/* $out/opt/
+    cp -r usr/* $out/usr/
+
+    cp ${lsbRelease} $out/etc/lsb-release
+
+    install -Dm755 ${setupScript} $out/libexec/setup-crossover.sh
+
+    makeWrapper $out/opt/cxoffice/bin/crossover $out/bin/crossover \
+      --run "$out/libexec/setup-crossover.sh" \
+      --set LSB_RELEASE "$out/etc/lsb-release" \
+      "''${gappsWrapperArgs[@]}"
+
+    chmod +x $out/opt/cxoffice/bin/*
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Run your Windows® apps on Linux";
+    homepage = "https://www.codeweavers.com/crossover";
+    license = licenses.unfree;
+    maintainers = with maintainers; [ ];
+    platforms = [ "x86_64-linux" ];
+  };
+}
diff --git a/hosts/default/configuration.nix b/hosts/default/configuration.nix
index e744fc2..bebe385 100644
--- a/hosts/default/configuration.nix
+++ b/hosts/default/configuration.nix
@@ -12,6 +12,7 @@
 		../../modules/nixos/network.nix
 		../../modules/nixos/programs.nix
 		./packages.nix
+		./apps/crossover.nix
 	];
 
 	programs.steam = {
@@ -58,6 +59,8 @@
 		kdenlive
 		libsForQt5.qt5ct
 		libsForQt5.lightly
+		kdePackages.qt6ct
+		lightly-qt
 	];
 
 	# CHANGE YOUR NAME IN HOME MANAGER!