feat: add QML/Qt6 support system-wide

- Add qt6.full (includes qmlls language server) and libclang
- Configure QT_QPA_PLATFORM_PLUGIN_PATH and QML_IMPORT_PATH environment
  variables
- Link Qt6 share directory for proper resource discovery

Signed-off-by: elwrcl <[email protected]>

nixos/system/default.nix

@@ -6,5 +6,6 @@
     ./nix
     ./power.nix
     ./fonts
+    ./qml.nix
   ];
 }

nixos/system/qml.nix

@@ -0,0 +1,11 @@
+{ pkgs, ... }:
+{
+  environment.variables = {
+    QT_QPA_PLATFORM_PLUGIN_PATH = "${pkgs.qt6.qtbase}/lib/qt-6/plugins";
+    QML_IMPORT_PATH = "${pkgs.qt6.qtdeclarative}/lib/qt-6/qml";
+  };
+
+  environment.pathsToLink = [
+    "/share/qt6"
+  ];
+}

packages.nix

@@ -30,5 +30,9 @@ with pkgs;
     smartmontools
     gsmartcontrol
     parted
+
+    # qml/qt6
+    qt6.full
+    libclang
   ];
 }