diff --git a/systems/aarch64-linux/pi5/default.nix b/systems/aarch64-linux/pi5/default.nix
index a4c9ca1..76a0a5a 100755
--- a/systems/aarch64-linux/pi5/default.nix
+++ b/systems/aarch64-linux/pi5/default.nix
@@ -190,6 +190,19 @@ in
     ];
   };
 
+  users = {
+    users = {
+      atticd = {
+        isSystemUser = true;
+        group = "atticd";
+        extraGroups = [ "keys" ];
+      };
+    };
+    groups = {
+      atticd = { };
+    };
+  };
+
   boot.supportedFilesystems = [ "bcachefs" ];
 
   programs.seahorse.enable = false;