diff --git a/home/default.nix b/home/default.nix
index 188f2a81..11806cbf 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -3,8 +3,8 @@
 {
 
   imports = [
-    # ./hyprland
-    ./i3
+    ./hyprland
+    # ./i3
     ./programs
     ./rofi
     ./shell
diff --git a/home/hyprland/default.nix b/home/hyprland/default.nix
index f8ba2d6b..29ef4a87 100644
--- a/home/hyprland/default.nix
+++ b/home/hyprland/default.nix
@@ -18,6 +18,7 @@
   home.file.".config/hypr/wallpapers/wallpaper.png".source = ../wallpapers/wallpaper.png;
   
   home.file.".config/fcitx5/profile".source = ./profile;
+  home.file.".config/fcitx5/profile-bak".source = ./profile;  # used for backup
   # fcitx5 每次切换输入法，就会修改 ~/.config/fcitx5/profile 文件，导致我用 hm 管理的配置被覆盖
   # 解决方法是通过如下内置，每次 rebuild 前都先删除下 profile 文件
   home.activation.removeExistingFcitx5Profile = lib.hm.dag.entryBefore ["checkLinkTargets"] ''
diff --git a/home/hyprland/hypr-conf/hyprland.conf b/home/hyprland/hypr-conf/hyprland.conf
index 9fcc8056..6753eaab 100644
--- a/home/hyprland/hypr-conf/hyprland.conf
+++ b/home/hyprland/hypr-conf/hyprland.conf
@@ -194,7 +194,6 @@ exec-once=~/.config/hypr/scripts/startup
 
 #-- Fcitx5 input method ----------------------------------------------------
 windowrule=pseudo,fcitx    # enable this will make fcitx5 works, but fcitx5-configtool will not work!
-exec-once=fcitx5-remote -r
-exec-once=fcitx5 -d --replace
-exec-once=fcitx5-remote -r
+exec-once=cp ~/.config/fcitx5/profile-bak ~/.config/fcitx5/profile    # restore fcitx5 profile manged by nixos
+exec-once=fcitx5 -d --replace     # start fcitx5 daemon
 bind=ALT,E,exec,pkill fcitx5 -9;sleep 1;fcitx5 -d --replace; sleep 1;fcitx5-remote -r
\ No newline at end of file
diff --git a/home/i3/default.nix b/home/i3/default.nix
index 2efcb386..c31de5bc 100644
--- a/home/i3/default.nix
+++ b/home/i3/default.nix
@@ -46,7 +46,7 @@
   # set cursor size and dpi for 4k monitor
   xresources.properties = {
     "Xcursor.size" = 16;
-    "Xft.dpi" = 150;
+    "Xft.dpi" = 160;
   };
   
 }
\ No newline at end of file
diff --git a/home/programs/browsers.nix b/home/programs/browsers.nix
index 5521156a..d832260f 100644
--- a/home/programs/browsers.nix
+++ b/home/programs/browsers.nix
@@ -10,8 +10,8 @@
   };
   in {
   home.packages = with pkgs-stable; [
-    # firefox-wayland
-    firefox
+    firefox-wayland
+    # firefox
   ];
 
   programs = {
@@ -24,26 +24,26 @@
       # https://github.com/swaywm/sway/issues/7562
       package = pkgs-stable.google-chrome;
 
-      # commandLineArgs = [
-      #   # make it use GTK_IM_MODULE if it runs with Gtk4, so fcitx5 can work with it.
-      #   # (only supported by chromium/chrome at this time, not electron) 
-      #   "--gtk-version=4"
-      #   # make it use text-input-v1, which works for kwin 5.27 and weston
-      #   # "--enable-wayland-ime"
+      commandLineArgs = [
+        # make it use GTK_IM_MODULE if it runs with Gtk4, so fcitx5 can work with it.
+        # (only supported by chromium/chrome at this time, not electron) 
+        "--gtk-version=4"
+        # make it use text-input-v1, which works for kwin 5.27 and weston
+        # "--enable-wayland-ime"
 
-      #   # enable hardware acceleration - vulkan api
-      #   # "--enable-features=Vulkan"
-      # ];
+        # enable hardware acceleration - vulkan api
+        # "--enable-features=Vulkan"
+      ];
     };
 
     vscode = {
       enable = true;
       # use the stable version
       package = pkgs-stable.vscode.override {
-        # commandLineArgs = [
-        #   # make it use text-input-v1, which works for kwin 5.27 and weston
-        #   # "--enable-wayland-ime"
-        # ];
+        commandLineArgs = [
+          # make it use text-input-v1, which works for kwin 5.27 and weston
+          # "--enable-wayland-ime"
+        ];
       };
 
       # let vscode sync and update its configuration & extensions across devices, using github account.
diff --git a/hosts/msi-rtx4090/default.nix b/hosts/msi-rtx4090/default.nix
index 55063281..8d8c8766 100644
--- a/hosts/msi-rtx4090/default.nix
+++ b/hosts/msi-rtx4090/default.nix
@@ -9,7 +9,8 @@
     [
       ./cifs-mount.nix
       ../../modules/system.nix
-      ../../modules/i3.nix
+      ../../modules/hyprland.nix
+      #../../modules/i3.nix
       ../../modules/fcitx5
       ../../modules/nur-packages.nix