config changes

- network: add tor relay + snowflake proxy
- email: regex alias for admin
- search: enable some additional engines

config/options.nix

@@ -1,4 +1,10 @@
-{lib, ...}: {
+{
+  lib,
+  config,
+  ...
+}: let
+  cfg = config.customOps;
+in {
   options = with lib; {
     customOps = mkOption {
       description = "custom options";
@@ -10,8 +16,22 @@
             description = "machine owner username";
           };
           domain = mkOption {
-            type = types.str;
-            default = null;
+            type = types.submodule {
+              options = {
+                name = mkOption {
+                  type = types.str;
+                  default = null;
+                };
+                tld = mkOption {
+                  type = types.str;
+                  default = null;
+                };
+                fqdn = mkOption {
+                  type = types.str;
+                  default = "${cfg.domain.name}.${cfg.domain.tld}";
+                };
+              };
+            };
             description = "machine domain name";
           };
         };