diff --git a/homeConfigurations/tejing/chat.nix b/homeConfigurations/tejing/chat.nix
index 9789ea7..92529dc 100644
--- a/homeConfigurations/tejing/chat.nix
+++ b/homeConfigurations/tejing/chat.nix
@@ -1,16 +1,20 @@
-{ my, pkgs, ... }:
+{ my, pkgs, pkgsUnstable, ... }:
 
 {
   home.packages = builtins.attrValues {
     inherit (pkgs)
       weechat
     ;
+    inherit (pkgsUnstable)
+      signal-desktop
+    ;
   };
   xsession.windowManager.i3.config.startup = [
     { command = "${my.launch.term} app weechat ${pkgs.weechat}/bin/weechat"; always = false; notification = false; }
     { command = "${my.pwarun} discord https://discord.com/app";always = false; notification = false; }
     { command = "${my.pwarun} element https://app.element.io";always = false; notification = false; }
     { command = "${my.pwarun} discourse https://discourse.nixos.org/latest";always = false; notification = false; }
+    { command = "${pkgsUnstable.signal-desktop}";always = false; notification = false; }
   ];
   xsession.windowManager.i3.config.window.commands = [{ criteria = { class = "^URxvt$"; instance = "^weechat$"; }; command = "layout tabbed"; }];
   xsession.windowManager.i3.config.assigns."11" = [
@@ -18,5 +22,6 @@
     { class = "^element$"; instance = "^element$"; }
     { class = "^discourse$"; instance = "^discourse$"; }
     { class = "^URxvt$"; instance = "^weechat$"; }
+    { class = "^Signal$"; instance = "^signal$"; }
   ];
 }