autoupgrade ok ?

common/services/autoupgrade.nix

@@ -13,20 +13,30 @@
 
   systemd.services."nix-auto-upgrade" = {
     enable = true;
-    unitConfig = {
-      After="network-online.target";
-      Description="NixOS Upgrade";
-      Wants="network-online.target";
-      # X-StopOnRemoval=false; ?
-    };
+
+    description = "NixOS Upgrade";
+
+    restartIfChanged = false;
+    unitConfig.X-StopOnRemoval = false;
+
+    after = ["network-online.target"];
+    wants = ["network-online.target"];
+
     serviceConfig = {
       Type = "oneshot";
       User = "root";
       WorkingDirectory = /etc/nixos/nixos-config;
-
-      # X-RestartIfChanged=false; ?
     };
 
+    path = with pkgs; [
+      coreutils
+      gnutar
+      xz.bin
+      gzip
+      gitMinimal
+      # curl
+    ];
+
     script = ''
       set -eu