diff --git a/install b/install
index 882a337..bac5a7c 100755
--- a/install
+++ b/install
@@ -1,8 +1,8 @@
 #!/usr/bin/ruby
 
 STDERR.print <<EOS
-Warning: The Ruby Homebrew installer is now deprecated and has been rewritten in
-Bash. Please migrate to the following command:
+Warning: Ruby版本Homebrew安装脚本已被废弃，新版脚本使用Bash重写。
+请使用以下命令:
   /bin/bash -c "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install.sh)"
 
 EOS
diff --git a/install.sh b/install.sh
index facdd7c..be83ffa 100755
--- a/install.sh
+++ b/install.sh
@@ -7,20 +7,34 @@ if [[ ! -t 0 || -n "${CI-}" ]]; then
   NONINTERACTIVE=1
 fi
 
-# First check if the OS is Linux.
-if [[ "$(uname)" = "Linux" ]]; then
+abort() {
+  printf "%s\n" "$1"
+  exit 1
+}
+
+# First check OS.
+OS="$(uname)"
+if [[ "$OS" == "Linux" ]]; then
   HOMEBREW_ON_LINUX=1
+elif [[ "$OS" != "Darwin" ]]; then
+  abort "Homebrew is only supported on macOS and Linux."
 fi
 
-# On macOS, this script installs to /usr/local only.
-# On Linux, it installs to /home/linuxbrew/.linuxbrew if you have sudo access
-# and ~/.linuxbrew otherwise.
-# To install elsewhere (which is unsupported)
+UNAME_MACHINE="$(uname -m)"
+
+# Required installation paths. To install elsewhere (which is unsupported)
 # you can untar https://github.com/Homebrew/brew/tarball/master
 # anywhere you like.
 if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
-  HOMEBREW_PREFIX="/usr/local"
-  HOMEBREW_REPOSITORY="/usr/local/Homebrew"
+  if [[ "$UNAME_MACHINE" == "arm64" ]]; then
+    # On ARM macOS, this script installs to /opt/homebrew only
+    HOMEBREW_PREFIX="/opt/homebrew"
+    HOMEBREW_REPOSITORY="${HOMEBREW_PREFIX}"
+  else
+    # On Intel macOS, this script installs to /usr/local only
+    HOMEBREW_PREFIX="/usr/local"
+    HOMEBREW_REPOSITORY="${HOMEBREW_PREFIX}/Homebrew"
+  fi
   HOMEBREW_CACHE="${HOME}/Library/Caches/Homebrew"
 
   STAT="stat -f"
@@ -29,6 +43,8 @@ if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
   GROUP="admin"
   TOUCH="/usr/bin/touch"
 else
+  # On Linux, it installs to /home/linuxbrew/.linuxbrew if you have sudo access
+  # and ~/.linuxbrew (which is unsupported) if run interactively.
   HOMEBREW_PREFIX_DEFAULT="/home/linuxbrew/.linuxbrew"
   HOMEBREW_CACHE="${HOME}/.cache/Homebrew"
 
@@ -117,11 +133,6 @@ warn() {
   printf "${tty_red}Warning${tty_reset}: %s\n" "$(chomp "$1")"
 }
 
-abort() {
-  printf "%s\n" "$1"
-  exit 1
-}
-
 execute() {
   if ! "$@"; then
     abort "$(printf "Failed during: %s" "$(shell_join "$@")")"
@@ -333,21 +344,16 @@ EOABORT
 )"
 fi
 
-UNAME_MACHINE="$(uname -m)"
-
-if [[ -z "${HOMEBREW_ON_LINUX-}" ]] && [[ "$UNAME_MACHINE" == "arm64" ]]; then
-  abort "$(cat <<EOABORT
-Homebrew is not (yet) supported on ARM processors!
-Rerun the Homebrew installer under Rosetta 2.
-If you really know what you are doing and are prepared for a very broken
-experience you can use another installation option for installing on ARM:
-  ${tty_underline}https://docs.brew.sh/Installation${tty_reset}
-EOABORT
-)"
-fi
-
-if [[ "$UNAME_MACHINE" != "x86_64" ]]; then
-  abort "Homebrew is only supported on Intel processors!"
+if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
+  # On macOS, support 64-bit Intel and ARM
+  if [[ "$UNAME_MACHINE" != "arm64" ]] && [[ "$UNAME_MACHINE" != "x86_64" ]]; then
+    abort "Homebrew is only supported on Intel and ARM processors!"
+  fi
+else
+  # On Linux, support only 64-bit Intel
+  if [[ "$UNAME_MACHINE" != "x86_64" ]]; then
+    abort "Homebrew is only supported on Intel processors!"
+  fi
 fi
 
 if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
@@ -419,7 +425,7 @@ done
 directories=(bin etc include lib sbin share var opt
              share/zsh share/zsh/site-functions
              var/homebrew var/homebrew/linked
-             Cellar Caskroom Homebrew Frameworks)
+             Cellar Caskroom Frameworks)
 mkdirs=()
 for dir in "${directories[@]}"; do
   if ! [[ -d "${HOMEBREW_PREFIX}/${dir}" ]]; then
@@ -518,6 +524,11 @@ if [[ "${#mkdirs[@]}" -gt 0 ]]; then
   execute_sudo "$CHGRP" "$GROUP" "${mkdirs[@]}"
 fi
 
+if ! [[ -d "${HOMEBREW_REPOSITORY}" ]]; then
+  execute_sudo "/bin/mkdir" "-p" "${HOMEBREW_REPOSITORY}"
+fi
+execute_sudo "$CHOWN" "$USER:$GROUP" "${HOMEBREW_REPOSITORY}"
+
 if ! [[ -d "${HOMEBREW_CACHE}" ]]; then
   if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
     execute_sudo "/bin/mkdir" "-p" "${HOMEBREW_CACHE}"
@@ -598,7 +609,9 @@ ohai "Downloading and installing Homebrew..."
 
   execute "git" "reset" "--hard" "origin/master"
 
-  execute "ln" "-sf" "${HOMEBREW_REPOSITORY}/bin/brew" "${HOMEBREW_PREFIX}/bin/brew"
+  if [[ "${HOMEBREW_REPOSITORY}" != "${HOMEBREW_PREFIX}" ]]; then
+    execute "ln" "-sf" "${HOMEBREW_REPOSITORY}/bin/brew" "${HOMEBREW_PREFIX}/bin/brew"
+  fi
 
   execute "${HOMEBREW_PREFIX}/bin/brew" "update" "--force"
 ) || exit 1
diff --git a/uninstall b/uninstall
index 5b1ecfe..bc47f6f 100755
--- a/uninstall
+++ b/uninstall
@@ -1,8 +1,8 @@
 #!/usr/bin/ruby
 
 STDERR.print <<EOS
-Warning: The Ruby Homebrew uninstaller is now deprecated and has been rewritten in
-Bash. Please migrate to the following command:
+Warning: Ruby版本Homebrew安装脚本已被废弃，新版脚本使用Bash重写。
+请使用以下命令:
   /bin/bash -c "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/uninstall.sh)"
 
 EOS
diff --git a/uninstall.sh b/uninstall.sh
index 600c323..74d80cd 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -170,7 +170,7 @@ Usage: $0 [options]
                      Skips removal of HOMEBREW_CACHE and HOMEBREW_LOGS.
     -f, --force      Uninstall without prompting.
     -q, --quiet      Suppress all output.
-    -d, --dry-run    Simulate uninstall but don't remove anything.
+    -n, --dry-run    Simulate uninstall but don't remove anything.
     -h, --help       Display this message.
 EOS
   exit "${1:-0}"
@@ -183,7 +183,7 @@ while [[ $# -gt 0 ]]; do
     --skip-cache-and-logs) opt_skip_cache_and_logs=1;;
     -f|--force) opt_force=1;;
     -q|--quiet) opt_quiet=1;;
-    -d|--dry-run) opt_dry_run=1;;
+    -d|-n|--dry-run) opt_dry_run=1;;
     -h|--help) usage;;
     *) warn "Unrecognized option: '$1'"; usage 1;;
   esac