diff --git a/makefu/1systems/tsp.nix b/makefu/1systems/tsp.nix
index 388ded068..638d2ca8a 100644
--- a/makefu/1systems/tsp.nix
+++ b/makefu/1systems/tsp.nix
@@ -15,13 +15,15 @@
 
       ../2configs/disable_v6.nix
       ../2configs/rad1o.nix
+
+      ../2configs/exim-retiolum.nix
     ];
   # not working in vm
   krebs.build.host = config.krebs.hosts.tsp;
   krebs.build.user = config.krebs.users.makefu;
   krebs.build.target = "root@tsp";
 
-  krebs.exim-retiolum.enable = true;
+
   networking.firewall.allowedTCPPorts = [
     25
   ];
@@ -31,8 +33,8 @@
       #url = https://github.com/NixOS/nixpkgs;
       # rev=$(curl https://nixos.org/channels/nixos-unstable/git-revision -L)
       url = https://github.com/makefu/nixpkgs;
-      rev = "8b8b65da24f13f9317504e8bcba476f9161613fe";
+      #rev = "8b8b65da24f13f9317504e8bcba476f9161613fe";
+      rev = "f5fe787f778b872c6b2221598501c9310cb83915";
     };
   };
-
 }
diff --git a/makefu/2configs/exim-retiolum.nix b/makefu/2configs/exim-retiolum.nix
new file mode 100644
index 000000000..fc570ba97
--- /dev/null
+++ b/makefu/2configs/exim-retiolum.nix
@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+{
+  krebs.exim-retiolum.enable = true;
+  environment.systemPackages = with pkgs; [
+    msmtp
+    mutt-kz
+  ];
+
+}
diff --git a/makefu/2configs/urlwatch.nix b/makefu/2configs/urlwatch.nix
new file mode 100644
index 000000000..933cb93c5
--- /dev/null
+++ b/makefu/2configs/urlwatch.nix
@@ -0,0 +1,17 @@
+{ config, ... }:
+
+{
+  krebs.urlwatch = {
+    enable = true;
+    mailto = config.krebs.users.makefu.mail;
+    onCalendar = "*-*-* 05:00:00";
+    urls = [
+      ## nixpkgs maintenance
+      https://api.github.com/repos/ovh/python-ovh/tags
+      https://api.github.com/repos/embray/d2to1/tags
+      http://git.sysphere.org/vicious/log/?qt=grep&q=Next+release
+
+    ];
+  };
+}
+