trying to fix a seg fault

flake.nix

@@ -10,6 +10,7 @@
         let pkgs = nixpkgs.legacyPackages.${system}; in
         {
           devShell = import ./shell.nix { inherit pkgs; };
+          defaultPackage = import ./default.nix { inherit pkgs; };
         }
       );
 }

shell.nix

@@ -22,7 +22,11 @@ mkShell {
     qt5.qtquickcontrols2
     qt5.qtx11extras
     qt5.qtmultimedia
+    qt5.qtwayland
     libsForQt5.kirigami2
+    libsForQt5.breeze-icons
+    libsForQt5.breeze-qt5
+    libsForQt5.qqc2-desktop-style
     # libsForQt5.kirigami-addons
     libsForQt5.ki18n
     libsForQt5.kcoreaddons

src/main.cpp

@@ -95,7 +95,7 @@ int main(int argc, char *argv[])
 
   //Need to instantiate our slide
   Slide slide("", "", "", "", "", "", "", 0);
-  // QScopedPointer<Slide> slide("", "", "", "", "", "", "", 0);
+  // QScopedPointer<Slide> slide(new Slide("", "", "", "", "", "", "", 0));
 
   // apparently mpv needs this class set
   // let's register mpv as well