fix Qt error

Author: TakuyaYagam1

Linux/NixOS/flake.nix

@@ -156,8 +156,10 @@
         claude-code     = inputs.claude-code.packages.${system}.default;
         codex           = inputs.codex.packages.${system}.default;
         zen-browser     = inputs.zen-browser.packages.${system}.default;
-        quickshell      = inputs.quickshell.packages.${system}.default;
-    templ           = inputs.templ.packages.${system}.templ;
+        quickshell      = inputs.quickshell.packages.${system}.default.override {
+          libxcb = prev.libxcb;
+        };
+        templ           = inputs.templ.packages.${system}.templ;
         neovim          = inputs.neovim-nightly-overlay.packages.${system}.default;
       };
   in {

Linux/NixOS/home/end4/dotfiles.nix

@@ -36,6 +36,12 @@ let
     patchShebangs $out
   '';
 
+  end4KvantumThemes = pkgs.runCommand "end4-kvantum-themes" { } ''
+    mkdir -p "$out/share/Kvantum"
+    cp -r ${dotfilesSource}/dots/.config/Kvantum/Colloid "$out/share/Kvantum/"
+    cp -r ${dotfilesSource}/dots/.config/Kvantum/MaterialAdw "$out/share/Kvantum/"
+  '';
+
   patchedHypr = pkgs.runCommand "end4-hypr-patched" {
     buildInputs = [
       pkgs.bash
@@ -104,6 +110,10 @@ EOF
   '';
 in
 {
+  # Stylix/Home Manager owns ~/.config/Kvantum globally. Add end4's bundled
+  # themes through qt.kvantum.themes instead of replacing that whole directory.
+  qt.kvantum.themes = lib.mkAfter [ end4KvantumThemes ];
+
   home.file = {
     ".local/state/quickshell/.venv/bin/activate" = {
       force = true;
@@ -146,7 +156,6 @@ in
     "hypr/end4" = forcedSource patchedHypr;
     "kde-material-you-colors" = forcedSource "${dotfilesSource}/dots/.config/kde-material-you-colors";
     "kitty" = forcedSource "${dotfilesSource}/dots/.config/kitty";
-    "Kvantum" = forcedSource "${dotfilesSource}/dots/.config/Kvantum";
     "matugen" = forcedSource "${dotfilesSource}/dots/.config/matugen";
     "mpv" = forcedSource "${dotfilesSource}/dots/.config/mpv";
     "quickshell/ii" = forcedSource "${patchedQuickshell}/ii";

Linux/NixOS/home/end4/environment.nix

@@ -1,17 +1,20 @@
 { config, lib, ... }:
 
 {
-  config = lib.mkMerge [
-    {
-      home.sessionVariables = {
-        QT_STYLE_OVERRIDE = lib.mkForce "";
-        ILLOGICAL_IMPULSE_DOTFILES_SOURCE = "${config.home.homeDirectory}/.config";
-        ILLOGICAL_IMPULSE_VIRTUAL_ENV = "${config.home.homeDirectory}/.local/state/quickshell/.venv";
-        qsConfig = "${config.home.homeDirectory}/.config/quickshell/ii";
-      };
-    }
-    {
-      systemd.user.sessionVariables = config.home.sessionVariables;
-    }
-  ];
+  home.sessionVariables = {
+    QT_STYLE_OVERRIDE = lib.mkForce "";
+    ILLOGICAL_IMPULSE_DOTFILES_SOURCE = "${config.home.homeDirectory}/.config";
+    ILLOGICAL_IMPULSE_VIRTUAL_ENV = "${config.home.homeDirectory}/.local/state/quickshell/.venv";
+    qsConfig = "${config.home.homeDirectory}/.config/quickshell/ii";
+  };
+
+  # HM's Qt module already manages most systemd session env on its own.
+  # Mirror only end4-specific runtime vars here so we do not reintroduce
+  # option conflicts by copying the whole home.sessionVariables attrset.
+  systemd.user.sessionVariables = {
+    QT_STYLE_OVERRIDE = lib.mkForce "";
+    ILLOGICAL_IMPULSE_DOTFILES_SOURCE = "${config.home.homeDirectory}/.config";
+    ILLOGICAL_IMPULSE_VIRTUAL_ENV = "${config.home.homeDirectory}/.local/state/quickshell/.venv";
+    qsConfig = "${config.home.homeDirectory}/.config/quickshell/ii";
+  };
 }

Linux/NixOS/home/end4/packages.nix

@@ -38,7 +38,7 @@ in
       ripgrep
       rsync
       slurp
-      swww
+      awww
       swappy
       translate-shell
       upower

Linux/NixOS/home/end4/quickshell.nix

@@ -2,7 +2,9 @@
 
 let
   system = pkgs.stdenv.hostPlatform.system;
-  qsPackage = inputs.quickshell-end4.packages.${system}.default;
+  qsPackage = inputs.quickshell-end4.packages.${system}.default.override {
+    xorg = pkgs.xorg // { libxcb = pkgs.libxcb; };
+  };
   qtRuntime = with pkgs; [
     qt6.qtbase
     qt6.qtdeclarative