Add Tailscale module

hosts/Garand-Desktop/system-modules.nix

@@ -19,6 +19,11 @@ _: {
   gamescope.enable = false; # Gamescope: micro‑compositor for games
   steam.enable = true; # Steam: platform for buying and playing games
 
+  /*
+  Networking
+  */
+  tailscale.enable = false; # Tailscale: secure network for remote access
+
   packages = {
     /*
     Container & Packaging

hosts/Garand-Laptop/system-modules.nix

@@ -12,6 +12,11 @@ _: {
     };
   };
 
+  /*
+  Networking
+  */
+  tailscale.enable = false; # Tailscale: secure network for remote access
+
   /*
   Gaming
   */

hosts/default/system-modules.nix

@@ -12,6 +12,11 @@ _: {
     };
   };
 
+  /*
+  Networking
+  */
+  tailscale.enable = false; # Tailscale: secure network for remote access
+
   /*
   Gaming
   */

modules/core/default.nix

@@ -19,6 +19,7 @@
     ./stylix.nix
     ./syncthing.nix
     ./system.nix
+    ./tailscale.nix
     ./thunar.nix
     ./user.nix
     ./xdg.nix

modules/core/tailscale.nix

@@ -0,0 +1,14 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: {
+  options.tailscale.enable = lib.mkEnableOption "Tailscale";
+
+  config.services.tailscale = lib.mkIf config.tailscale.enable {
+    enable = true;
+    package = pkgs.tailscale;
+    openFirewall = true;
+  };
+}