diff --git a/flake.nix b/flake.nix
index ee17633..7006457 100644
--- a/flake.nix
+++ b/flake.nix
@@ -83,6 +83,10 @@
       rec {
         packages = {
           inherit nix-serve-ng lix-serve-ng;
+          private = pkgs.runCommand "private" { } ''
+            mkdir $out
+            touch $out/.private
+          '';
           default = nix-serve-ng;
         };