add tailscale

configuration.nix

@@ -16,6 +16,7 @@
       ./modules/storage.nix
       ./modules/root-programs.nix
       ./modules/smb.nix
+      ./modules/tailscale.nix
     ];
 
   # Use the GRUB 2 boot loader.

modules/tailscale.nix

@@ -0,0 +1,9 @@
+{ config, pkgs, ... }:
+
+{
+  # make the tailscale command usable to users
+  environment.systemPackages = [ pkgs.tailscale ];
+
+  # enable the tailscale service
+  services.tailscale.enable = true;
+}