diff --git a/modules/programs/video.nix b/modules/programs/video.nix
index 816765b..82eeadf 100644
--- a/modules/programs/video.nix
+++ b/modules/programs/video.nix
@@ -19,6 +19,7 @@ in {
       # to record your screen
       # ---------------------
       simplescreenrecorder
+      # todo : the tool to show the keys pressing
 
       # to transcode video material
       # ---------------------------
diff --git a/system/all/default.nix b/system/all/default.nix
index e314990..f85e252 100644
--- a/system/all/default.nix
+++ b/system/all/default.nix
@@ -40,7 +40,8 @@
   # some system stuff
   # -----------------
   # time.timeZone = lib.mkDefault "Europe/Berlin";
-  time.timeZone = lib.mkDefault "Pacific/Auckland";
+  #time.timeZone = lib.mkDefault "Pacific/Auckland";
+  time.timeZone = lib.mkDefault "Asia/Singapore";
 
   i18n = {
     consoleFont = "Lat2-Terminus16";
diff --git a/system/desktop/wtf.nix b/system/desktop/wtf.nix
index 8864b86..9549e97 100644
--- a/system/desktop/wtf.nix
+++ b/system/desktop/wtf.nix
@@ -306,8 +306,8 @@ let
           top = 3;
           left = 0;
           title = "rates";
-          rates.NZD = [ "EUR" ];
-          rates.EUR = [ "NZD" ];
+          rates.SGD = [ "EUR" ];
+          rates.EUR = [ "SGD" ];
           refreshInterval = 3600;
         };