diff --git a/systems/pi400/default.nix b/systems/pi400/default.nix
index 9a3f253..1dd934f 100644
--- a/systems/pi400/default.nix
+++ b/systems/pi400/default.nix
@@ -69,6 +69,11 @@
     };
   };
 
+  services.nix-serve = {
+    enable = true;
+    secretKeyFile = "/var/cache-priv-key.pem";
+  };
+
   environment.systemPackages = with pkgs; [
     grim # screenshot functionality
     slurp # screenshot functionality