Recursively include inputs for all inputs in disko closure.

nix/configuration/formats/iso.nix

@@ -1,6 +1,8 @@
 {
+  config,
   lib,
   modulesPath,
+  pkgs,
   ...
 }:
 
@@ -20,12 +22,15 @@
     me.disko.enable = true;
     me.disko.offline.enable = true;
     me.mountPersistence = lib.mkForce false;
-    me.optimizations.enable = lib.mkForce false;
+    # me.optimizations.enable = lib.mkForce false;
 
     # Not doing image_based_appliance because this might be an install ISO, in which case we'd need nix to do the install.
     # me.image_based_appliance.enable = true;
 
     # TODO: Should I use this instead of doing a mkIf for the disk config?
     # disko.enableConfig = false;
+
+    # Faster image generation for testing/development.
+    isoImage.squashfsCompression = "zstd -Xcompression-level 15";
   };
 }