diff --git a/makefu/2configs/default.nix b/makefu/2configs/default.nix
index 760c70789..519635281 100644
--- a/makefu/2configs/default.nix
+++ b/makefu/2configs/default.nix
@@ -80,7 +80,14 @@ with lib;
     "d /tmp 1777 root root - -"
   ];
 
-  environment.variables.EDITOR = mkForce "vim";
+  environment.variables = {
+    NIX_PATH = with config.krebs.build.source; with dir; with git;
+      mkForce (concatStringsSep ":" [
+        "nixpkgs=${nixpkgs.target-path}"
+        "${nixpkgs.target-path}"
+      ]);
+    EDITOR = mkForce "vim";
+  };
 
   environment.systemPackages = with pkgs; [
       jq
@@ -124,6 +131,14 @@ with lib;
 
   services.cron.enable = false;
   services.nscd.enable = false;
+  services.ntp.enable = false;
+  services.timesyncd.enable = true;
+  services.ntp.servers = [
+    "pool.ntp.org"
+    "time.windows.com"
+    "time.apple.com"
+    "time.nist.gov"
+  ];
 
   security.setuidPrograms = [ "sendmail" ];
   services.journald.extraConfig = ''