diff --git a/tools/identity.nix b/tools/identity.nix
index 1557b50..04cc0b8 100644
--- a/tools/identity.nix
+++ b/tools/identity.nix
@@ -7,6 +7,8 @@ let
 
     inherit domain;
 
+    autoDomain = name: "${builtins.hashString "md5" name}.dev.${domain}";
+
     ldap = {
       server = with self.ldap.server; {
         # TODO: unhardcode everything here