diff --git a/.config/linux/nix/desktop/configuration.nix b/.config/linux/nix/desktop/configuration.nix
index c079573..728803e 100644
--- a/.config/linux/nix/desktop/configuration.nix
+++ b/.config/linux/nix/desktop/configuration.nix
@@ -1,33 +1,20 @@
-# Edit this configuration file to define what should be installed on
-# your system.  Help is available in the configuration.nix(5) man page
-# and in the NixOS manual (accessible by running ‘nixos-help’).
-
 { config, pkgs, ... }:
 
 {
-	imports =
-		[ # Include the results of the hardware scan.
-			./hardware-configuration.nix
-		];
+	imports = [
+		./hardware-configuration.nix
+	];
 
 	# Bootloader.
 	boot.loader.systemd-boot.enable      = true;
 	boot.loader.efi.canTouchEfiVariables = true;
 
-	networking.hostName = "desktop"; # Define your hostname.
-	# networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
-
-	# Configure network proxy if necessary
-	# networking.proxy.default = "http://user:password@proxy:port/";
-	# networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
-
-	# Enable networking.
+	# Network.
 	networking.networkmanager.enable = true;
+	networking.hostName = "desktop";
 
-	# Set your time zone.
-	time.timeZone = "Europe/Moscow";
-
-	# Select internationalisation properties.
+	# Locale.
+	time.timeZone      = "Europe/Moscow";
 	i18n.defaultLocale = "en_US.UTF-8";
 	i18n.extraLocaleSettings = {
 		LC_ADDRESS        = "ru_RU.UTF-8";
@@ -41,20 +28,16 @@
 		LC_TIME           = "ru_RU.UTF-8";
 	};
 
-	# Enable the X11 windowing system (required for GUI).
+	# GUI.
 	services.xserver.enable = true;
-
-	# Enable the GNOME Desktop Environment.
 	services.xserver.displayManager.gdm.enable   = true;
 	services.xserver.desktopManager.gnome.enable = true;
-
-	# Configure keymap in X11.
 	services.xserver = {
 		layout     = "us";
 		xkbVariant = "";
 	};
 
-	# Enable CUPS to print documents.
+	# Printing.
 	services.printing = {
 		enable = true;
 		clientConf = ''
@@ -63,7 +46,7 @@
 		'';
 	};
 
-	# Enable sound with pipewire.
+	# Sound.
 	sound.enable = true;
 	hardware.pulseaudio.enable = false;
 	security.rtkit.enable      = true;
@@ -72,18 +55,9 @@
 		alsa.enable       = true;
 		alsa.support32Bit = true;
 		pulse.enable      = true;
-		# If you want to use JACK applications, uncomment this
-		#jack.enable = true;
-
-		# use the example session manager (no others are packaged yet so this is enabled by default,
-		# no need to redefine it in your config for now)
-		#media-session.enable = true;
 	};
 
-	# Enable touchpad support (enabled default in most desktopManager).
-	# services.xserver.libinput.enable = true;
-
-	# Define a user account. Don't forget to set a password with ‘passwd’.
+	# User.
 	users.users.voronind = {
 		isNormalUser = true;
 		description  = "Dmitry Voronin";
@@ -93,14 +67,10 @@
 		];
 	};
 
-	# Allow unfree packages
-	nixpkgs.config.allowUnfree = true;
-
-	# Enable flatpak.
+	# Flatpak.
 	services.flatpak.enable = true;
 
-	# List packages installed in system profile. To search, run:
-	# $ nix search wget
+	# System packages.
 	environment.systemPackages = with pkgs; [
 		android-tools
 		appimage-run
@@ -138,7 +108,7 @@
 		setSocketVariable = true;
 	};
 
-	# Systemd services.
+	# Systemd.
 	systemd.services.powersave = {
 		enable = true;
 		description = "AMD Disable Boost";
@@ -153,33 +123,6 @@
 		wantedBy = [ "multi-user.target" ];
 	};
 
-	# Some programs need SUID wrappers, can be configured further or are
-	# started in user sessions.
-	# programs.mtr.enable = true;
-	# programs.gnupg.agent = {
-	#   enable = true;
-	#   enableSSHSupport = true;
-	# };
-
-	# List services that you want to enable:
-
-	# Enable the OpenSSH daemon.
-	# services.openssh.enable = true;
-
-	# Open ports in the firewall.
-	# networking.firewall.allowedTCPPorts = [ ... ];
-	# networking.firewall.allowedUDPPorts = [ ... ];
-	# Or disable the firewall altogether.
-	networking.firewall.enable = false;
-
-	# This value determines the NixOS release from which the default
-	# settings for stateful data, like file locations and database versions
-	# on your system were taken. It‘s perfectly fine and recommended to leave
-	# this value at the release version of the first install of this system.
-	# Before changing this value read the documentation for this option
-	# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-	system.stateVersion = "23.11"; # Did you read the comment?
-
 	# Filesystems.
 	fileSystems."/storage/hot" = {
 		device = "/dev/storage/hot";
@@ -198,4 +141,21 @@
 		fsType = "ext4";
 		options = [ "noauto" "nofail" ];
 	};
+
+	# Openssh server.
+	services.openssh.enable = false;
+
+	# Firewall.
+	networking.firewall.enable = false;
+
+	# Nix.
+	nixpkgs.config.allowUnfree = true;
+
+	# This value determines the NixOS release from which the default
+	# settings for stateful data, like file locations and database versions
+	# on your system were taken. It‘s perfectly fine and recommended to leave
+	# this value at the release version of the first install of this system.
+	# Before changing this value read the documentation for this option
+	# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+	system.stateVersion = "23.11"; # Did you read the comment?
 }