diff --git a/localbuild.sh b/localbuild.sh
new file mode 100644
index 00000000..9d1c85ff
--- /dev/null
+++ b/localbuild.sh
@@ -0,0 +1,138 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2022 Ing <https://github.com/wjz304>
+#
+# This is free software, licensed under the MIT License.
+# See /LICENSE for more information.
+#
+
+if [ "$(id -u)" -ne 0 ]; then
+  echo "This script must be run as root"
+  exit 1
+fi
+
+function help() {
+  echo "Usage: $0 <command> [args]"
+  echo "Commands:"
+  echo "  init [workspace] [rr.img] - Initialize the workspace"
+  echo "  config - Configure the workspace"
+  echo "  pack [rr.img] - Pack the workspace"
+  echo "  help - Show this help"
+  exit 1
+}
+
+function init() {
+  WORKSPACE="$(realpath ${1:-"workspace"})"
+  RRIMGPATH="$(realpath ${2:-"rr.img"})"
+
+  if [ ! -f "${RRIMGPATH}" ]; then
+    echo "File not found: ${RRIMGPATH}"
+    exit 1
+  fi
+
+  sudo apt update
+  sudo apt install -y locales busybox dialog
+  sudo locale-gen en_US.UTF-8 ko_KR.UTF-8 ru_RU.UTF-8 zh_CN.UTF-8 zh_HK.UTF-8 zh_TW.UTF-8
+
+  YQ=$(command -v yq)
+  if [ -z "${YQ}" ] || ! ${YQ} --version 2>/dev/null | grep -q "v4."; then
+    wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O "${YQ:-"/usr/bin/yq"}" && chmod +x "${YQ:-"/usr/bin/yq"}"
+  fi
+
+  LOOPX=$(sudo losetup -f)
+  sudo losetup -P "${LOOPX}" "${RRIMGPATH}"
+
+  echo "Mounting image file"
+  rm -rf "/tmp/p1"
+  rm -rf "/tmp/p2"
+  rm -rf "/tmp/p3"
+  mkdir -p "/tmp/p1"
+  mkdir -p "/tmp/p2"
+  mkdir -p "/tmp/p3"
+  sudo mount ${LOOPX}p1 "/tmp/p1"
+  sudo mount ${LOOPX}p2 "/tmp/p2"
+  sudo mount ${LOOPX}p3 "/tmp/p3"
+
+  echo "Create WORKSPACE"
+  rm -rf "${WORKSPACE}"
+  mkdir -p "${WORKSPACE}/mnt"
+  mkdir -p "${WORKSPACE}/tmp"
+  mkdir -p "${WORKSPACE}/initrd"
+  cp -rf "/tmp/p1" "${WORKSPACE}/mnt/p1"
+  cp -rf "/tmp/p2" "${WORKSPACE}/mnt/p2"
+  cp -rf "/tmp/p3" "${WORKSPACE}/mnt/p3"
+  (
+    cd "${WORKSPACE}/initrd"
+    xz -dc <"${WORKSPACE}/mnt/p3/initrd-rr" | cpio -idm
+  ) 2>/dev/null
+  sudo sync
+  sudo umount "/tmp/p1"
+  sudo umount "/tmp/p2"
+  sudo umount "/tmp/p3"
+  rm -rf "/tmp/p1"
+  rm -rf "/tmp/p2"
+  rm -rf "/tmp/p3"
+  sudo losetup --detach ${LOOPX}
+
+  rm -f $(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env
+  echo "export LOADER_DISK=\"LOCALBUILD\"" >>$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env
+  echo "export CHROOT_PATH=\"${WORKSPACE}\"" >>$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env
+  echo "OK."
+}
+
+function config() {
+  if [ ! -f $(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env ]; then
+    echo "Please run init first"
+    exit 1
+  fi
+  . $(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env
+  pushd "${CHROOT_PATH}/initrd/opt/rr"
+  ./init.sh
+  ./menu.sh
+  popd
+  echo "OK."
+}
+
+function pack() {
+  if [ ! -f $(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env ]; then
+    echo "Please run init first"
+    exit 1
+  fi
+  . $(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/rr.env
+
+  RRIMGPATH="$(realpath ${2:-"rr.img"})"
+  if [ ! -f "${RRIMGPATH}" ]; then
+    gzip -dc "${CHROOT_PATH}/initrd/opt/rr/grub.img.gz" >"${RRIMGPATH}"
+  fi
+  fdisk -l "${RRIMGPATH}"
+
+  LOOPX=$(sudo losetup -f)
+  sudo losetup -P "${LOOPX}" "${RRIMGPATH}"
+
+  echo "Mounting image file"
+  rm -rf "/tmp/p1"
+  rm -rf "/tmp/p2"
+  rm -rf "/tmp/p3"
+  mkdir -p "/tmp/p1"
+  mkdir -p "/tmp/p2"
+  mkdir -p "/tmp/p3"
+  sudo mount ${LOOPX}p1 "/tmp/p1"
+  sudo mount ${LOOPX}p2 "/tmp/p2"
+  sudo mount ${LOOPX}p3 "/tmp/p3"
+
+  echo "Pack image file"
+  cp -rf "${CHROOT_PATH}/mnt/p1/"* "/tmp/p1"
+  cp -rf "${CHROOT_PATH}/mnt/p2/"* "/tmp/p2"
+  cp -rf "${CHROOT_PATH}/mnt/p3/"* "/tmp/p3"
+  sudo sync
+  sudo umount "/tmp/p1"
+  sudo umount "/tmp/p2"
+  sudo umount "/tmp/p3"
+  rm -rf "/tmp/p1"
+  rm -rf "/tmp/p2"
+  rm -rf "/tmp/p3"
+  sudo losetup --detach ${LOOPX}
+  echo "OK."
+}
+
+$@
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