diff --git a/flake.nix b/flake.nix
index 57f6714..70b2541 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,20 @@
       propagatedBuildInputs = [
         pkgs.python312Packages.libvirt
         pkgs.python312Packages.pyqt5
+        pkgs.libsForQt5.qtbase
       ];
+      buildInputs = [
+        pkgs.libsForQt5.qttools
+      ];
+      nativeBuildInputs = [
+        pkgs.libsForQt5.wrapQtAppsHook
+      ];
+      # Arguments to be passed to `makeWrapper`, only used by buildPython*
+      preFixup = ''
+        qtWrapperArgs+=("''${gappsWrapperArgs[@]}")
+        # You can manually patch scripts using: wrapQtApp "$out/bin/myapp". TODO: check when it's required.
+        wrapQtApp $out/bin/cassowary
+      '';
       src = pkgs.fetchurl {
         url = "https://github.com/casualsnek/cassowary/releases/download/0.6/cassowary-0.6-py3-none-any.whl";
         hash = "sha256-WWvCE1yKhz50AE8s/UG4IYT2eJKxFZinTrOBs5AGt9g=";