diff --git a/home/common.nix b/home/common.nix
index 31d5887..46cf0cf 100644
--- a/home/common.nix
+++ b/home/common.nix
@@ -146,4 +146,10 @@
   home.sessionVariables = {
     EDITOR = "nvim";
   };
+
+  home.activation.reportChanges = config.lib.dag.entryAnywhere ''
+    if [[ -v oldGenPath ]]; then
+      run nix store diff-closures $oldGenPath $newGenPath
+    fi
+  '';
 }