diff --git a/modules/generic.nix b/modules/generic.nix
index f927f74..ddf5fc6 100644
--- a/modules/generic.nix
+++ b/modules/generic.nix
@@ -31,7 +31,7 @@
 
   # Make the current system version visible in the prompt.
   programs.bash.promptInit = ''
-    export PS1="\u@\h (version ${config.system.image.version}) $ "
+    export PS1="\u@\h (version ${config.system.image.version}) \w $ "
   '';
 
   # Not compatible with system.etc.overlay.enable yet.
diff --git a/modules/kernel/default.nix b/modules/kernel/default.nix
index 3cb344e..f41ee79 100644
--- a/modules/kernel/default.nix
+++ b/modules/kernel/default.nix
@@ -1,4 +1,9 @@
-{ lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 {
   boot.kernelPackages =
     let
@@ -10,7 +15,7 @@
         modDirVersion = version;
         src = pkgs.fetchurl {
           url = "https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${version}.tar.xz";
-          hash = "sha256:ec9ef7a0b9cebb55940e1ef87a1f9e1004b10456a119dc386bb3e565b0d39c42";
+          sha256 = "ec9ef7a0b9cebb55940e1ef87a1f9e1004b10456a119dc386bb3e565b0d39c42";
         };
         configfile = ./generic.config;
         allowImportFromDerivation = true;
diff --git a/modules/partitions.nix b/modules/partitions.nix
index d4d4c1b..fa1fe5c 100644
--- a/modules/partitions.nix
+++ b/modules/partitions.nix
@@ -21,7 +21,7 @@
 
       mkfsOptions = {
         erofs = [
-          "-zzstd,6" # Zstd compression
+          # "-zzstd,6" # Zstd compression
           "-T0" # Fixed timestamp for all files
           "-Efragments,dedupe,ztailpacking" # Extended options
         ];
diff --git a/modules/utils.nix b/modules/utils.nix
index 9fbad21..91940e7 100644
--- a/modules/utils.nix
+++ b/modules/utils.nix
@@ -11,5 +11,8 @@ let
   '';
 in
 {
-  environment.systemPackages = [ script ];
+  environment.systemPackages = [
+    # pkgs.ncdu
+    script
+  ];
 }