{ pkgs, lib, ... }: {
	imports = [
		./desktop/App.nix
		./desktop/Dconf.nix
		./desktop/DisplayManager.nix
		./desktop/Sound.nix
	];

	# Default apps.
	xdg.mime.defaultApplications = {
		# Use `file -i file.txt` to find file mime type.
		# Use `xdg-mime query default "text/plain"` to find default app.
		"application/pdf" = "org.gnome.Evince.desktop";
		"application/vnd.openxmlformats-officedocument.*" = "onlyoffice-desktopeditors.desktop";
		"audio/*" = "mpv.desktop";
		"image/*" = "org.gnome.Loupe.desktop";
		"text/*"  = "nvim.desktop";
		"video/*" = "mpv.desktop";
	};

	# Extra apps.
	environment.systemPackages = with pkgs; [
		adwsteamgtk
		gnome.gnome-remote-desktop
		gnome.gnome-tweaks
		gradience
		openssl
		wl-clipboard
	];

	# Disable some apps.
	services.gnome.gnome-keyring.enable = lib.mkForce false;
	environment.gnome.excludePackages = with pkgs.gnome; [
		# baobab      # Disk usage analyzer.
		# cheese      # Photo booth.
		# epiphany    # Web browser.
		# simple-scan # Document scanner.
		# totem       # Video player.
		# yelp        # Help viewer.
		# file-roller # Archive manager.
		# geary       # Email client.
		# seahorse    # Password manager.

		# gnome-calculator
		# gnome-calendar
		# gnome-characters
		# gnome-clocks
		# gnome-contacts
		# gnome-font-viewer
		# gnome-keyring
		# gnome-logs
		# gnome-maps
		# gnome-music
		# gnome-shell-extensions
		gnome-software
		# gnome-system-monitor
		# gnome-weather
		# gnome-disk-utility
		# pkgs.gnome-text-editor
	];
}