feat: add qt platform theme configuration and enable adwaita-qt packages

home/default.nix

@@ -84,5 +84,15 @@
     "org/gnome/nautilus/preferences" = {
       default-folder-viewer = "icon-view";
     };
+
+    qt = {
+      enable = true;
+      platformTheme.name = "gtk3";
+      style = {
+        name = "adwaita-dark";
+        package = pkgs.adwaita-qt;
+      };
+    };
+
   };
 }

home/hypr/hyprland/env.nix

@@ -10,6 +10,8 @@
       "XDG_SESSION_DESKTOP,Hyprland"
       "GDK_BACKEND,wayland,x11"
       "QT_QPA_PLATFORM,wayland;xcb"
+      "QT_QPA_PLATFORMTHEME,gtk3"
+      "QT_STYLE_OVERRIDE,adwaita-dark"
       "ELECTRON_OZONE_PLATFORM_HINT,auto"
       "TERMINAL,ghostty"
       "MESA_GL_VERSION_OVERRIDE,4.6"

nixos/gaming/steam/default.nix

@@ -8,6 +8,8 @@
     ];
     package = pkgs.steam.override {
       extraPkgs = p: with p; [
+        xdg-desktop-portal
+        xdg-desktop-portal-gtk
         liberation_ttf
         wqy_zenhei
         corefonts

packages.nix

@@ -17,6 +17,8 @@ with pkgs; {
     qt6Packages.qtdeclarative
     qt6Packages.qtwayland
     qt6Packages.qtwebsockets
+    adwaita-qt
+    adwaita-qt6
     mesa
     cava
     direnv