diff --git a/.bootstrap.sh b/.bootstrap.sh
index fa596fd..86672fd 100644
--- a/.bootstrap.sh
+++ b/.bootstrap.sh
@@ -1,12 +1,15 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-# check if this is already a git repo.
+# Temproraty test.
+touch INIT_DOT
+
+# Check if this is already a git repo.
 if [[ -d ".git" ]]; then
 	echo "Found the .git directory. Already initialized?"
 	exit 1
 fi
 
-# sync.
+# Sync.
 git init &> /dev/null
 git remote add origin https://git.voronind.com/voronind/linux.git &> /dev/null
 git fetch &> /dev/null
diff --git a/.config/linux/system/flake.nix b/.config/linux/system/flake.nix
index 55afc2c..b893983 100644
--- a/.config/linux/system/flake.nix
+++ b/.config/linux/system/flake.nix
@@ -3,7 +3,7 @@
 		nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 	};
 
-	outputs = { self, nixpkgs } @inputs: {
+	outputs = { self, nixpkgs } @inputs: rec {
 		# Constant values.
 		nixosModules.const = {
 			hashedPassword = "$y$j9T$oqCB16i5E2t1t/HAWaFd5.$tTaHtAcifXaDVpTcRv.yH2/eWKxKE9xM8KcqXHfHrD7"; # Use `mkpasswd`.
@@ -14,6 +14,7 @@
 		nixosModules.common.imports = [
 			./module/common/Bootloader.nix
 			./module/common/Distrobox.nix
+			./module/common/Dotfile.nix
 			./module/common/Firewall.nix
 			./module/common/Kernel.nix
 			./module/common/Locale.nix
diff --git a/.config/linux/system/host/live/Configuration.nix b/.config/linux/system/host/live/Configuration.nix
new file mode 100644
index 0000000..91cbd9e
--- /dev/null
+++ b/.config/linux/system/host/live/Configuration.nix
@@ -0,0 +1,6 @@
+{ config, pkgs, ... }:
+
+{
+	imports = [
+	];
+}
diff --git a/.config/linux/system/host/live/HardwareConfiguration.nix b/.config/linux/system/host/live/HardwareConfiguration.nix
new file mode 100644
index 0000000..04618ac
--- /dev/null
+++ b/.config/linux/system/host/live/HardwareConfiguration.nix
@@ -0,0 +1,4 @@
+{ ... }:
+
+{
+}
diff --git a/.config/linux/system/module/common/Dotfile.nix b/.config/linux/system/module/common/Dotfile.nix
new file mode 100644
index 0000000..6fac0a7
--- /dev/null
+++ b/.config/linux/system/module/common/Dotfile.nix
@@ -0,0 +1,12 @@
+{ pkgs, ... }: {
+	systemd.user.services.dotfiles = {
+		description = "Install/update dotfiles in startup.";
+		wantedBy    = [ "graphical-session-pre.target" ];
+		serviceConfig.Type = "oneshot";
+		script = ''
+			cd ~
+			${pkgs.curl}/bin/curl https://git.voronind.com/voronind/linux/raw/branch/main/.bootstrap.sh | ${pkgs.bash}/bin/bash || true
+			${pkgs.git}/bin/git pull
+		'';
+	};
+}
diff --git a/.config/linux/system/module/common/Package.nix b/.config/linux/system/module/common/Package.nix
index ffcc15f..5ca2948 100644
--- a/.config/linux/system/module/common/Package.nix
+++ b/.config/linux/system/module/common/Package.nix
@@ -7,6 +7,7 @@
 		binwalk
 		btop
 		cryptsetup
+		curl
 		ddrescue
 		ffmpeg
 		file