diff --git a/hosts/asus-gl553vd/configuration.nix b/hosts/asus-gl553vd/configuration.nix
index a426034..69f6904 100644
--- a/hosts/asus-gl553vd/configuration.nix
+++ b/hosts/asus-gl553vd/configuration.nix
@@ -33,6 +33,18 @@
 
   local.programs.browsers.tor-browser.enable = true;
 
+  local.programs.communication = {
+    telegram = {
+      enable = true;
+      package = pkgs.unstable.tdesktop;
+    };
+    simplex-chat = {
+      enable = true;
+      package = pkgs.unstable.simplex-chat-desktop;
+      openFirewall = true;
+    };
+  };
+
   environment.shellInit = ''
     [ -n "$DISPLAY" ] && ${pkgs.xorg.xhost}/bin/xhost +si:localuser:$USER > /dev/null || true
   '';
diff --git a/hosts/home/configuration.nix b/hosts/home/configuration.nix
index 0601efb..0833bdd 100644
--- a/hosts/home/configuration.nix
+++ b/hosts/home/configuration.nix
@@ -54,6 +54,11 @@
       enable = true;
       package = pkgs.unstable.tdesktop;
     };
+    simplex-chat = {
+      enable = true;
+      package = pkgs.unstable.simplex-chat-desktop;
+      openFirewall = true;
+    };
   };
 
   containers.games = {
diff --git a/modules/home-manager/programs/communication.nix b/modules/home-manager/programs/communication.nix
index a4227b8..ea3cdfe 100644
--- a/modules/home-manager/programs/communication.nix
+++ b/modules/home-manager/programs/communication.nix
@@ -4,10 +4,6 @@
 let cfg = config.local.programs.communication; in
 {
   options.local.programs.communication = with lib; {
-    simplex-chat = {
-      enable = mkEnableOption "SimplexChat";
-      package = mkPackageOption pkgs "simplex-chat-desktop" { };
-    };
     matrix = {
       enable = mkEnableOption "nheko. matrix client";
       package = mkPackageOption pkgs "nheko" { };
@@ -18,8 +14,9 @@ let cfg = config.local.programs.communication; in
     };
   };
 
-  config.home.packages =
-    lib.optional cfg.simplex-chat.enable cfg.simplex-chat.package
-    ++ lib.optional cfg.matrix.enable cfg.matrix.package
-    ++ lib.optional cfg.tox.enable cfg.tox.package;
+  config = {
+    home.packages =
+      lib.optional cfg.matrix.enable cfg.matrix.package
+      ++ lib.optional cfg.tox.enable cfg.tox.package;
+  };
 }
diff --git a/modules/nixos/programs/communication/default.nix b/modules/nixos/programs/communication/default.nix
index 9a842b6..d41fb9a 100644
--- a/modules/nixos/programs/communication/default.nix
+++ b/modules/nixos/programs/communication/default.nix
@@ -4,5 +4,6 @@
   imports = [
     ./skype.nix
     ./telegram.nix
+    ./simplex-chat.nix
   ];
 }
diff --git a/modules/nixos/programs/communication/simplex-chat.nix b/modules/nixos/programs/communication/simplex-chat.nix
new file mode 100644
index 0000000..64accb9
--- /dev/null
+++ b/modules/nixos/programs/communication/simplex-chat.nix
@@ -0,0 +1,21 @@
+{ config, pkgs, lib, ... }:
+
+let
+  cfg = config.local.programs.communication.simplex-chat;
+in
+{
+  options.local.programs.communication.simplex-chat = with lib; {
+    enable = mkEnableOption "SimplexChat";
+    package = mkPackageOption pkgs "simplex-chat-desktop" { };
+    openFirewall = mkEnableOption "Open firewall to link mobile device";
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+
+    networking.firewall = lib.mkIf cfg.openFirewall {
+      allowedTCPPorts = [ 44000 ];
+      trustedInterfaces = [ "wg0" ];
+    };
+  };
+}