scripts: make hcr a regular script to immediately report changes after a switch

home/scripts/changes-report.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, ... }:
+
+let
+  profiles = "/nix/var/nix/profiles/per-user/${config.home.username}/home-manager-*-link";
+in
+pkgs.writeShellScriptBin "hm-changes-report" ''
+  # Disable nvd if there are less than 2 hm profiles.
+  if [ $(ls -d1v ${profiles} 2>/dev/null | wc -l) -lt 2 ]; then
+    echo "Skipping changes report..."
+  else
+    ${pkgs.nvd}/bin/nvd diff $(ls -d1v ${profiles} | tail -2)
+  fi
+''

home/scripts/default.nix

@@ -2,29 +2,17 @@ let
   scripts = { config, lib, pkgs, ... }:
     let
       gen-ssh-key = pkgs.callPackage ./gen-ssh-key.nix { inherit pkgs; };
-      hms = pkgs.callPackage ./switcher.nix { inherit config pkgs; };
+      hcr = pkgs.callPackage ./changes-report.nix { inherit config pkgs; };
       kls = pkgs.callPackage ./keyboard-layout-switch.nix { inherit pkgs; };
       szp = pkgs.callPackage ./show-zombie-parents.nix { inherit pkgs; };
-      profiles = "/nix/var/nix/profiles/per-user/${config.home.username}/home-manager-*-link"; 
     in
     {
-      home = {
-        activation.changesReport = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
-          # Disable nvd if there are less than 2 hm profiles.
-          if [ $(ls -d1v ${profiles} 2>/dev/null | wc -l) -lt 2 ]; then
-            echo "Skipping changes report..."
-          else
-            $DRY_RUN_CMD ${pkgs.nvd}/bin/nvd diff $(ls -d1v ${profiles} | tail -2)
-          fi
-        '';
-
-        packages =
-          [
-            gen-ssh-key # generate ssh key and add it to the system
-            kls         # switch keyboard layout
-            szp         # show zombie parents
-            # hms       # custom home-manager switcher that considers the current DISPLAY
-          ];
-      };
+      home.packages = [
+        hcr # home-manager changes report between generations
+        gen-ssh-key # generate ssh key and add it to the system
+        kls # switch keyboard layout
+        szp # show zombie parents
+      ];
     };
-in [ scripts ]
+in
+[ scripts ]

switch

@@ -7,6 +7,7 @@ activateHM() {
   rm ~/.config/orage/oragerc.bak
   rm -rf ~/.config/secrets
   HOME_MANAGER_BACKUP_EXT=bak result/activate
+  hm-changes-report
 }
 
 rebuild_home_edp() {