diff --git a/users/buffet/nvd.nix b/users/buffet/nvd.nix
index 7ec73ff..c500965 100644
--- a/users/buffet/nvd.nix
+++ b/users/buffet/nvd.nix
@@ -9,10 +9,12 @@
             exit 1
         }
 
-        nixos-rebuild build --flake . || exit 1
+        flake="''${1:-https://buffets.kitchen/kitchen/rice/archive/main.tar.gz}"
+
+        nixos-rebuild build --flake "$flake" --option tarball-ttl 0|| exit 1
         diff="$(${pkgs.nvd}/bin/nvd diff /run/current-system result)"
         rm result
-        nixos-rebuild switch --flake .
+        nixos-rebuild switch --flake "$flake" --option tarball-ttl 0
         echo '***'
         printf '%s\n' "$diff"
       '')