diff --git a/.gitignore b/.gitignore
index 1cd8a2a..c4c4ffc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1 @@
 *.zip
-update-binary
-customize.sh
diff --git a/META-INF/com/google/android/update-binary b/META-INF/com/google/android/update-binary
new file mode 100644
index 0000000..ca3cf8a
--- /dev/null
+++ b/META-INF/com/google/android/update-binary
@@ -0,0 +1,104 @@
+#!/usr/bin/env sh
+
+[ $(id -u) -eq 0 ] || {
+  printf "\n(!) must run as root\n\n"
+  exit 2
+}
+
+# set source code directory
+src="$(cd "${0%/*}" 2>/dev/null; echo "$PWD")"
+
+# for magisk
+SKIPUNZIP=1
+
+patch_cfg() {
+  if [ -f $cfg ] && [ "$1" != r ]; then
+    if grep -Eq '^# :|mem_total' $cfg; then
+      patch_cfg r
+    else
+      config_ver=0$(sed -n '/^config_ver=/s/.*=//p' $cfg)
+      if [ $config_ver -lt 0202110290 ]; then
+        sed -i -e '1iconfig_ver=202110290\n' -e '/^comp_a/s/=.*/=auto/' -e '/^vm=/s/e=200\"/e=200 page-cluster=0\"/' $cfg
+      fi
+    fi
+  else
+    install -m 644 $src/zram-swap-manager.conf $cfg
+  fi
+}
+
+if [ -d /data/adb ]; then
+
+  # android
+
+  # extract flashable zip if source code is unavailable
+  [ -f $src/TODO ] || {
+    src=/dev/.vr25-zsm-install
+    on_exit() { rm -rf ${src:-//} 2>/dev/null; }
+    on_exit
+    trap on_exit EXIT
+    mkdir $src
+    unzip "${3:-${ZIPFILE}}" -d $src/ >&2
+  }
+
+  . $src/busybox.sh
+
+  install_dir=/data/adb/modules/zram-swap-manager
+  data_dir=/data/adb/vr25/zram-swap-manager-data
+  cfg=/data/adb/vr25/zram-swap-manager-data/config.txt
+
+  rm -rf $install_dir 2>/dev/null
+  mkdir -p $install_dir/system/bin $data_dir
+
+  cp $src/zram-swap-manager.sh $install_dir/
+    ln -sf $install_dir/zram-swap-manager.sh $install_dir/system/bin/zram-swap-manager
+      ln -sf $install_dir/zram-swap-manager.sh $install_dir/system/bin/zsm
+    ln -sf $install_dir/zram-swap-manager.sh /sbin/zram-swap-manager 2>/dev/null \
+      && ln -sf $install_dir/zram-swap-manager.sh /sbin/zsm
+
+  [ -f $data_dir/config.txt ] || cp $src/zram-swap-manager.conf $data_dir/config.txt
+
+  cp $src/uninstall.sh $install_dir/
+    ln -sf $install_dir/uninstall.sh $install_dir/system/bin/zram-swap-manager-uninstall
+    ln -sf $install_dir/uninstall.sh /sbin/zram-swap-manager-uninstall 2>/dev/null
+
+  for i in $install_dir/*.sh; do
+    sed -i 's|^#!/.*|#!/system/bin/sh|' $i
+  done
+
+  i="$PWD"
+  cd $src/
+  cp busybox.sh module.prop service.sh $install_dir/
+  cd "$i"
+  unset i
+
+  patch_cfg
+
+  chmod +x $install_dir/*.sh
+  [ ".$1" != .--start ] || $install_dir/service.sh
+
+else
+
+  # gnu/linux
+
+  cfg=/etc/zram-swap-manager.conf
+  [ -f $cfg ] && upgrade=true
+
+  sh $src/uninstall.sh --keep-config >/dev/null 2>&1
+  mkdir -p /usr/local/bin/
+
+  install -m 644 $src/zram-swap-manager.service /etc/systemd/system/zram-swap-manager.service
+
+  install -m 755 $src/zram-swap-manager.sh /usr/local/bin/zram-swap-manager
+    ln -s /usr/local/bin/zram-swap-manager /usr/local/bin/zsm
+
+  ${upgrade:-false} || patch_cfg r
+  install -m 755 $src/uninstall.sh /usr/local/bin/zram-swap-manager-uninstall
+
+  patch_cfg
+
+  systemctl enable zram-swap-manager
+  [ ".$1" != .--start ] || zram-swap-manager -r
+
+fi
+
+echo "Done!"
diff --git a/customize.sh b/customize.sh
new file mode 100644
index 0000000..ca3cf8a
--- /dev/null
+++ b/customize.sh
@@ -0,0 +1,104 @@
+#!/usr/bin/env sh
+
+[ $(id -u) -eq 0 ] || {
+  printf "\n(!) must run as root\n\n"
+  exit 2
+}
+
+# set source code directory
+src="$(cd "${0%/*}" 2>/dev/null; echo "$PWD")"
+
+# for magisk
+SKIPUNZIP=1
+
+patch_cfg() {
+  if [ -f $cfg ] && [ "$1" != r ]; then
+    if grep -Eq '^# :|mem_total' $cfg; then
+      patch_cfg r
+    else
+      config_ver=0$(sed -n '/^config_ver=/s/.*=//p' $cfg)
+      if [ $config_ver -lt 0202110290 ]; then
+        sed -i -e '1iconfig_ver=202110290\n' -e '/^comp_a/s/=.*/=auto/' -e '/^vm=/s/e=200\"/e=200 page-cluster=0\"/' $cfg
+      fi
+    fi
+  else
+    install -m 644 $src/zram-swap-manager.conf $cfg
+  fi
+}
+
+if [ -d /data/adb ]; then
+
+  # android
+
+  # extract flashable zip if source code is unavailable
+  [ -f $src/TODO ] || {
+    src=/dev/.vr25-zsm-install
+    on_exit() { rm -rf ${src:-//} 2>/dev/null; }
+    on_exit
+    trap on_exit EXIT
+    mkdir $src
+    unzip "${3:-${ZIPFILE}}" -d $src/ >&2
+  }
+
+  . $src/busybox.sh
+
+  install_dir=/data/adb/modules/zram-swap-manager
+  data_dir=/data/adb/vr25/zram-swap-manager-data
+  cfg=/data/adb/vr25/zram-swap-manager-data/config.txt
+
+  rm -rf $install_dir 2>/dev/null
+  mkdir -p $install_dir/system/bin $data_dir
+
+  cp $src/zram-swap-manager.sh $install_dir/
+    ln -sf $install_dir/zram-swap-manager.sh $install_dir/system/bin/zram-swap-manager
+      ln -sf $install_dir/zram-swap-manager.sh $install_dir/system/bin/zsm
+    ln -sf $install_dir/zram-swap-manager.sh /sbin/zram-swap-manager 2>/dev/null \
+      && ln -sf $install_dir/zram-swap-manager.sh /sbin/zsm
+
+  [ -f $data_dir/config.txt ] || cp $src/zram-swap-manager.conf $data_dir/config.txt
+
+  cp $src/uninstall.sh $install_dir/
+    ln -sf $install_dir/uninstall.sh $install_dir/system/bin/zram-swap-manager-uninstall
+    ln -sf $install_dir/uninstall.sh /sbin/zram-swap-manager-uninstall 2>/dev/null
+
+  for i in $install_dir/*.sh; do
+    sed -i 's|^#!/.*|#!/system/bin/sh|' $i
+  done
+
+  i="$PWD"
+  cd $src/
+  cp busybox.sh module.prop service.sh $install_dir/
+  cd "$i"
+  unset i
+
+  patch_cfg
+
+  chmod +x $install_dir/*.sh
+  [ ".$1" != .--start ] || $install_dir/service.sh
+
+else
+
+  # gnu/linux
+
+  cfg=/etc/zram-swap-manager.conf
+  [ -f $cfg ] && upgrade=true
+
+  sh $src/uninstall.sh --keep-config >/dev/null 2>&1
+  mkdir -p /usr/local/bin/
+
+  install -m 644 $src/zram-swap-manager.service /etc/systemd/system/zram-swap-manager.service
+
+  install -m 755 $src/zram-swap-manager.sh /usr/local/bin/zram-swap-manager
+    ln -s /usr/local/bin/zram-swap-manager /usr/local/bin/zsm
+
+  ${upgrade:-false} || patch_cfg r
+  install -m 755 $src/uninstall.sh /usr/local/bin/zram-swap-manager-uninstall
+
+  patch_cfg
+
+  systemctl enable zram-swap-manager
+  [ ".$1" != .--start ] || zram-swap-manager -r
+
+fi
+
+echo "Done!"
diff --git a/zip.sh b/zip.sh
index f00b2a6..efaf1b5 100644
--- a/zip.sh
+++ b/zip.sh
@@ -3,4 +3,4 @@
 { cd "${0%/*}"
 cp -u install.sh customize.sh
 cp -u install.sh META-INF/com/google/android/update-binary; } 2>/dev/null
-zip -r9 zsm-magisk-$(date +%Y%m%d%H%m%S).zip * .git* -x \*.zip -x .git/\*
+zip -r9 zsm-magisk-$(date +%Y%m%d%H%M%S).zip * .git* -x \*.zip -x .git/\*
diff --git a/zram-swap-manager.sh b/zram-swap-manager.sh
index b2915ad..f024ff3 100644
--- a/zram-swap-manager.sh
+++ b/zram-swap-manager.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-version="v2021.10.29-beta (202110290)"
+version="v2021.11.6-beta (202111060)"
 info="zRAM Swap Manager $version
 Copyright (C) 2021, VR25
 License: GPLv3+
@@ -22,7 +22,7 @@ edit_config() {
     eval "$* $config"
   else
     for i in $EDITOR vim vi nano; do
-      which ${i%% *} && {
+      which ${i%% *} >/dev/null && {
         eval "$i $config"
         break
       }
@@ -55,23 +55,23 @@ prep_exec() {
   [ -d /data/adb ] && {
     mkswap() {
       for exec in /data/adb/vr25/bin/mkswap /system/*bin/mkswap /sbin/mkswap "busybox mkswap"; do
-        [ -x ${exec%% *} ] && {
+        if [ -x ${exec%% *} ] || which ${exec%% *} >/dev/null; then
           eval $exec "$@" && break || echo "(i) Trying alternative..."
-        }
+        fi
       done
     }
     swapoff() {
       for exec in /data/adb/vr25/bin/swapoff /system/*bin/swapoff /sbin/swapoff "busybox swapoff"; do
-        [ -x ${exec%% *} ] && {
+        if [ -x ${exec%% *} ] || which ${exec%% *} >/dev/null; then
           eval $exec "$@" && break || echo "(i) Trying alternative..."
-        }
+        fi
       done
     }
     swapon() {
       for exec in /data/adb/vr25/bin/swapon /system/*bin/swapon /sbin/swapon "busybox swapon"; do
-        [ -x ${exec%% *} ] && {
+        if [ -x ${exec%% *} ] || which ${exec%% *} >/dev/null; then
           eval $exec "$@" && break || echo "(i) Trying alternative..."
-        }
+        fi
       done
     }
   }