diff --git a/nix/configurations/vanadium/home/misc.nix b/nix/configurations/vanadium/home/misc.nix
index 8337a00b..ae41030e 100644
--- a/nix/configurations/vanadium/home/misc.nix
+++ b/nix/configurations/vanadium/home/misc.nix
@@ -31,7 +31,7 @@
 
   home.file = {
     ".xscreensaver".source = "${./xscreensaver/.xscreensaver}";
-    ".wallpaper".source = "${pkgs.wallpapers.packages.knights_of_guinevere.fixing_gwen}";
+    ".wallpaper".source = "${pkgs.wallpapers.packages.serial_experiments_lain.lain_red_bg}";
   };
   xdg.configFile = {
     "xmonad".source = "${./xmonad}";
diff --git a/nix/configurations/vanadium/nixos/locale.nix b/nix/configurations/vanadium/nixos/locale.nix
index b0c480c7..666053d8 100644
--- a/nix/configurations/vanadium/nixos/locale.nix
+++ b/nix/configurations/vanadium/nixos/locale.nix
@@ -2,7 +2,7 @@
 {
   # https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
   # `timedatectl list-timezones`
-  time.timeZone = "Europe/Paris";
+  time.timeZone = "Asia/Taipei";
 
   i18n = {
     defaultLocale = "en_US.UTF-8";
@@ -33,18 +33,11 @@
       # - evolution add event becomes hard to use
       #   https://gitlab.gnome.org/GNOME/evolution/-/issues/3120
       genLocale "fr_FR.UTF-8" [
-        "LC_CTYPE"
-        "LC_NUMERIC"
         "LC_TIME"
-        "LC_COLLATE"
+      ]
+      // genLocale "zh_TW.UTF-8" [
         "LC_MONETARY"
-        "LC_MESSAGES"
-        "LC_PAPER"
-        "LC_NAME"
         "LC_ADDRESS"
-        "LC_TELEPHONE"
-        "LC_MEASUREMENT"
-        "LC_IDENTIFICATION"
       ];
   };
 
@@ -55,6 +48,6 @@
   # https://wireless.docs.kernel.org/en/latest/en/developers/regulatory.html#the-ieee80211-regdom-module-parameter
   hardware.wirelessRegulatoryDatabase = true;
   boot.extraModprobeConfig = ''
-    options cfg80211 ieee80211_regdom="FR"
+    options cfg80211 ieee80211_regdom="TW"
   '';
 }