diff --git a/flake.lock b/flake.lock
index bcfca0e..37615ea 100644
--- a/flake.lock
+++ b/flake.lock
@@ -196,11 +196,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1684049129,
-        "narHash": "sha256-7WB9LpnPNAS8oI7hMoHeKLNhRX7k3CI9uWBRSfmOCCE=",
+        "lastModified": 1684139381,
+        "narHash": "sha256-YPLMeYE+UzxxP0qbkBzv3RBDvyGR5I4d7v2n8dI3+fY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0470f36b02ef01d4f43c641bbf07020bcab71bf1",
+        "rev": "17a689596b72d1906883484838eb1aaf51ab8001",
         "type": "github"
       },
       "original": {
diff --git a/shared/activation.nix b/shared/activation.nix
new file mode 100644
index 0000000..5d83539
--- /dev/null
+++ b/shared/activation.nix
@@ -0,0 +1,7 @@
+{ lib, pkgs, ... }:
+{
+  system.activationScripts.report-nixos-changes = ''
+    PATH=$PATH:${lib.makeBinPath [ pkgs.nvd pkgs.nix ]}
+    nvd diff $(ls -dv /nix/var/nix/profiles/system-*-link | tail -2)
+  '';
+}
diff --git a/shared/default.nix b/shared/default.nix
index 9353fb3..ea774a0 100644
--- a/shared/default.nix
+++ b/shared/default.nix
@@ -2,6 +2,7 @@
 {
   programs.nix-index-database.comma.enable = true;
   imports = [
+    ./activation.nix
     ./caches.nix
     ./gpg.nix
     ./sops.nix
diff --git a/users/rouven/default.nix b/users/rouven/default.nix
index e276dfa..6dfeed2 100644
--- a/users/rouven/default.nix
+++ b/users/rouven/default.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 {
   imports = [ ./fixes.nix ];
   nixpkgs.config.allowUnfree = true;
@@ -6,6 +6,10 @@
     isNormalUser = true;
     extraGroups = [ "wheel" "video" "libvirtd" ];
   };
+  system.activationScripts.report-home-manager-changes = ''
+    PATH=$PATH:${lib.makeBinPath [ pkgs.nvd pkgs.nix ]}
+    nvd diff $(ls -dv /nix/var/nix/profiles/per-user/rouven/home-manager-*-link | tail -2)
+  '';
   home-manager.useUserPackages = true;
   home-manager.useGlobalPkgs = true;