diff --git a/flake.lock b/flake.lock
index b4de3d8..cbc747d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -8,11 +8,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1676599101,
-        "narHash": "sha256-CKS6UsOGhoNxGDBt9wyFiWHvtng/+BMAJ4G8ahhe1DE=",
+        "lastModified": 1676910639,
+        "narHash": "sha256-YvZ2lQiUZrv5PCQ0nC/fn/0OT2ag8spCIOQx0COnFZ0=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "de657061b13cf329c57a1a9730a5049a971b40b3",
+        "rev": "5f66c8aa774d8d488cba1cdc4f0c954d2a14e3a1",
         "type": "github"
       },
       "original": {
@@ -321,11 +321,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1676367705,
-        "narHash": "sha256-un5UbRat9TwruyImtwUGcKF823rCEp4fQxnsaLFL7CM=",
+        "lastModified": 1676892629,
+        "narHash": "sha256-rlvsqoSBO5dCwfnn7xvImYREidIPJaiFS3b54TZF4pU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "da72e6fc6b7dc0c3f94edbd310aae7cd95c678b5",
+        "rev": "72ce74d3eae78a6b31538ea7ebe0c1fcf4a10f7a",
         "type": "github"
       },
       "original": {
@@ -382,11 +382,11 @@
         "xdph": "xdph"
       },
       "locked": {
-        "lastModified": 1676630258,
-        "narHash": "sha256-pc3aIr2LgmJFcTQwICpz3d4/u5/xHDI14qY/zEhGM3k=",
+        "lastModified": 1676902515,
+        "narHash": "sha256-tFvDUIWmsEdAWnbwCDCDwcPxcZNGQzPfRpx5tSL/yl0=",
         "owner": "hyprwm",
         "repo": "Hyprland",
-        "rev": "be2e4d9dd1e58991a4f54078a331cbcbd8265c7f",
+        "rev": "474ada9267ccb98015991ee9d0d93fbb5da72034",
         "type": "github"
       },
       "original": {
@@ -421,11 +421,11 @@
         "nixpkgs": "nixpkgs_5"
       },
       "locked": {
-        "lastModified": 1676406424,
-        "narHash": "sha256-G+JhFuaeB15MTU8DbJALm/Yf240FCQmrWZ8Y0UzyqRI=",
+        "lastModified": 1676681260,
+        "narHash": "sha256-R2FvbPzgvDSVs0jCUA9CMDIgw4F6exF8cR+y3Yea5jQ=",
         "owner": "hyprwm",
         "repo": "hyprpaper",
-        "rev": "1d76f4db0d3b487b9a9562195815e181652aef7c",
+        "rev": "2bc88dc8c220db674f458432aec0ac0d9ea6a640",
         "type": "github"
       },
       "original": {
@@ -436,11 +436,11 @@
     },
     "master": {
       "locked": {
-        "lastModified": 1676634984,
-        "narHash": "sha256-VlcjVkzFEYGOVMXvlpS9hREF40Zs3n3Gpw53nlo22CI=",
+        "lastModified": 1676912548,
+        "narHash": "sha256-5KH+YpMju3Zj6PU4wV3qaEznRvyt0y7Ei4hS7jsEh2c=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "98042fc6d36ebb11a4defe4f2cee76aa6192257d",
+        "rev": "20c135b191fd84f556cc5eb37b8d9d683a580b1e",
         "type": "github"
       },
       "original": {
@@ -456,11 +456,11 @@
       },
       "locked": {
         "dir": "contrib",
-        "lastModified": 1676634789,
-        "narHash": "sha256-ywC4XWyG6Qgs48ZYHU1BaxfPTlPS/Vt4Zgb5x0kYEWo=",
+        "lastModified": 1676908542,
+        "narHash": "sha256-a5J7LPxpmB69oOzCz0kuh6pXV/IVNMlDfs3pIYwnvHo=",
         "owner": "neovim",
         "repo": "neovim",
-        "rev": "f905ab04507fc5a86affeb5eaf8550c1795ac9b8",
+        "rev": "3507474611a03d88137a1d97666515b551c39cb3",
         "type": "github"
       },
       "original": {
@@ -636,11 +636,11 @@
     },
     "nixpkgs_8": {
       "locked": {
-        "lastModified": 1676549890,
-        "narHash": "sha256-sq/WcOEAl7gWrrfGkWdnyYazRyTf+enEim/o6LOQzI8=",
+        "lastModified": 1676790509,
+        "narHash": "sha256-W9uWAWokgS8US8rJf79qBLS2M+ZgIscfoz+KsNE7VGQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8c66bd1b68f4708c90dcc97c6f7052a5a7b33257",
+        "rev": "a1291d0d020a200c7ce3c48e96090bfa4890a475",
         "type": "github"
       },
       "original": {
@@ -744,11 +744,11 @@
         "nixpkgs-stable": "nixpkgs-stable_2"
       },
       "locked": {
-        "lastModified": 1676513100,
-        "narHash": "sha256-MK39nQV86L2ag4TmcK5/+r1ULpzRLPbbfvWbPvIoYJE=",
+        "lastModified": 1676879534,
+        "narHash": "sha256-HU4RXcwsAX1u7AUbGOBDxkYQkeODcn+HZjXqKa1y/hk=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "5f0cba88ac4d6dd8cad5c6f6f1540b3d6a21a798",
+        "rev": "c9495f017f67a11e9c9909b032dc7762dfc853cf",
         "type": "github"
       },
       "original": {
@@ -806,11 +806,11 @@
     },
     "stable": {
       "locked": {
-        "lastModified": 1676546582,
-        "narHash": "sha256-MJ+PXNmUyxnMTFoss7G2lEcUY2cfYZM6RudBAL5aX1k=",
+        "lastModified": 1676817468,
+        "narHash": "sha256-ovuJ1jQOC2/EEibufBkXmSN/O9mLx80Wh7aDmHmHAhA=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2fb7d749c084890192b2cd08ba264e5e4a14df1b",
+        "rev": "0cf4274b5d06325bd16dbf879a30981bc283e58a",
         "type": "github"
       },
       "original": {
diff --git a/modules/profiles/base.nix b/modules/profiles/base.nix
index cd7acbe..2f971c6 100644
--- a/modules/profiles/base.nix
+++ b/modules/profiles/base.nix
@@ -133,4 +133,10 @@ with lib;
     };
     xdg.userDirs.enable = true;
   };
+
+  system.activationScripts.diff = ''
+    if [ -e /run/current-system ]; then
+      ${pkgs.nvd}/bin/nvd --nix-bin-dir ${pkgs.nix}/bin diff /run/current-system/ "$systemConfig"
+    fi
+  '';
 }