Add packages and document where hardware-configuration.nix comes from.

.bauke/nix/stardust/configuration.nix

@@ -4,7 +4,7 @@
 
 {
   imports = [
-    ./hardware-configuration.nix
+    ./hardware-configuration.nix # Created by nixos-generate-config.
     ./packages.nix
     ./programs-services.nix
     ./system.nix

.bauke/nix/stardust/packages.nix

@@ -8,6 +8,7 @@
       bat
       catppuccin-cursors
       chromium
+      clonehero
       delta
       deno
       direnv
@@ -18,6 +19,7 @@
       gimp
       git
       imagemagick
+      jq
       kitty
       libnotify
       librewolf