diff --git a/desktop/plasma.nix b/desktop/plasma.nix
index f8fe0e8..77f8acf 100644
--- a/desktop/plasma.nix
+++ b/desktop/plasma.nix
@@ -36,9 +36,13 @@
     Ctrl+Alt+Delete=Lock Session,none,Lock the session
   '';
 
-  # Enable crashdump services for debugging
-  services.kdump.enable = true;
-  services.kdump.extraCrashkernel = "1G";
+  # stop PackageKit polling
+  services.packagekit.enable = false;
 
+  # remove the Discover GUI + tray notifier
+  environment.plasma5.excludePackages = with pkgs.libsForQt5; [
+    discover
+    discover-notifier
+  ];
 
 }