diff --git a/configuration/default.nix b/configuration/default.nix
index 72c955d..49668dd 100644
--- a/configuration/default.nix
+++ b/configuration/default.nix
@@ -54,6 +54,7 @@
     recommendedGzipSettings = true;
     recommendedProxySettings = true;
     clientMaxBodySize = "10G";
+    domain = "tlater.net";
 
     virtualHosts = let
       host = port: extra:
@@ -62,10 +63,11 @@
           enableACME = true;
           locations."/" = { proxyPass = "http://127.0.0.1:${toString port}"; };
         } // extra;
+      domain = config.services.nginx.domain;
     in {
-      "tlater.net" = host 3002 { serverAliases = [ "www.tlater.net" ]; };
-      "gitea.tlater.net" = host 3000 { };
-      "nextcloud.tlater.net" = host 3001 { };
+      "${domain}" = host 3002 { serverAliases = [ "www.${domain}" ]; };
+      "gitea.${domain}" = host 3000 { };
+      "nextcloud.${domain}" = host 3001 { };
     };
   };
 
diff --git a/flake.nix b/flake.nix
index a9baf34..78a3cfb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -68,12 +68,16 @@
             (import ./modules)
 
             (import ./configuration)
-            ({ ... }: {
+            ({ lib, ... }: {
               users.users.tlater.password = "insecure";
 
               # Disable graphical tty so -curses works
               boot.kernelParams = [ "nomodeset" ];
 
+              # Sets the base domain for nginx to localhost so that we
+              # can easily test locally with the VM.
+              services.nginx.domain = lib.mkOverride 99 "localhost";
+
               # # Set up VM settings to match real VPS
               # virtualisation.memorySize = 3941;
               # virtualisation.cores = 2;
diff --git a/modules/default.nix b/modules/default.nix
index 0bc1f1c..1fd86fc 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -1,5 +1,12 @@
-{ ... }:
+{ lib, ... }:
+
+with lib;
 
 {
   imports = [ ./virtualisation/pods.nix ];
+
+  options.services.nginx.domain = mkOption {
+    type = types.str;
+    description = "The base domain name to append to virtual domain names";
+  };
 }