diff --git a/Makefile b/Makefile
index 9cc2ff2..03ccce2 100644
--- a/Makefile
+++ b/Makefile
@@ -33,6 +33,9 @@ export HTTPD_EXPOSE_PORT
 export PLACKUP
 export CMD
 
+# mt-watcher container
+export PERL_FNS_NO_OPT
+
 
 # override variables
 ENV_FILE=.env
diff --git a/mt/mt-watcher.pl b/mt/mt-watcher.pl
new file mode 100755
index 0000000..7b63f24
--- /dev/null
+++ b/mt/mt-watcher.pl
@@ -0,0 +1,40 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+
+use Cwd qw(getcwd);
+use Filesys::Notify::Simple;
+
+if ( $ENV{DISABLE_MT_WATCHER} ) {
+    warn('mt-watcher container is disbled.');
+    exit;
+}
+
+# wait for `make me` to complete
+sleep(5);
+
+my $mt_home = $ENV{MT_HOME} || getcwd();
+$mt_home =~ s{/+$}{};    # remove trailing slash
+
+my @files   = ( map( {"$mt_home/$_"} qw(addons extlib lib plugins) ), glob("$mt_home/*.cgi") );
+my $watcher = Filesys::Notify::Simple->new( \@files );
+while (1) {
+    $watcher->wait(
+        sub {
+            my @paths = grep {
+
+                # exclude files other than "*.cgi" at the top level
+                $_ =~ m{$mt_home/(?:[^/]+\.cgi|.*?/)};
+            } map { $_->{path} } @_;
+
+            return unless @paths;
+
+            print( join( "\n", @paths ) . "\n" );
+            system('docker kill -s HUP mt_mt_1');
+
+            # throttling
+            sleep(1);
+        }
+    );
+}
diff --git a/mt/mt-watcher/Dockerfile b/mt/mt-watcher/Dockerfile
new file mode 100644
index 0000000..455ef24
--- /dev/null
+++ b/mt/mt-watcher/Dockerfile
@@ -0,0 +1,18 @@
+FROM perl:5.34
+
+ENV DOCKER_VERSION=20.10.7
+
+## docker
+RUN set -ex \
+    \
+    && mkdir /tmp/docker \
+    && cd /tmp/docker \
+    && curl -sL https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}.tgz -o docker.tgz \
+    && tar zxf docker.tgz \
+    && mv docker/docker /usr/bin/docker \
+    && rm -fr /tmp/docker
+
+## cpan libraries
+RUN set -ex \
+  \
+  && cpanm Filesys::Notify::Simple Linux::Inotify2
diff --git a/mt/plackup-mt b/mt/plackup-mt
index 0bc5f09..ee4e50c 100755
--- a/mt/plackup-mt
+++ b/mt/plackup-mt
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-reload_options="`ls *.cgi | sed -e 's/^/-R /'` `ls mt-static | grep -v support | sed -e 's/^/-R mt-static\//'`"
-
 exec starman \
     -MCGI \
     -MFile::Spec \
@@ -12,16 +10,8 @@ exec starman \
     -MDBI \
     -MDBD::mysql \
     -MImage::Magick \
-    -R addons \
-    -R alt-tmpl \
-    -R default_templates \
-    -R extlib \
-    -R lib \
-    -R php \
-    -R plugins \
-    -R search_templates \
-    -R themes \
-    -R tmpl \
-    -R tools \
-    $reload_options \
+    -E production \
+    --port=80 \
+    --workers=2 \
+    --pid=$MT_PID_FILE_PATH \
     "$@"
diff --git a/mt/psgi.yml b/mt/psgi.yml
index d2b4904..a538afa 100644
--- a/mt/psgi.yml
+++ b/mt/psgi.yml
@@ -2,6 +2,20 @@ version: "3"
 services:
   mt:
     restart: always
-    command: "${PLACKUP:-/usr/local/lib/mt/bin/plackup-mt -E production -L Shotgun --port=80 --workers=2 --pid=/tmp/mt.psgi.pid} /var/www/cgi-bin/mt/mt.psgi"
+    command: "${PLACKUP:-/usr/local/lib/mt/bin/plackup-mt} /var/www/cgi-bin/mt/mt.psgi"
+    environment:
+      MT_PID_FILE_PATH: ${MT_PID_FILE_PATH:-/tmp/mt.psgi.pid}
     volumes:
       - "./plackup-mt:/usr/local/lib/mt/bin/plackup-mt"
+  mt-watcher:
+    build:
+      context: mt-watcher
+    working_dir: /var/www/cgi-bin/mt
+    command: /usr/local/lib/mt/bin/mt-watcher.pl
+    environment:
+      PERL_FNS_NO_OPT: ${PERL_FNS_NO_OPT:-0}
+      DISABLE_MT_WATCHER: ${DISABLE_MT_WATCHER:-0}
+    volumes:
+      - "${MT_HOME_PATH:-../../movabletype}:/var/www/cgi-bin/mt"
+      - "./mt-watcher.pl:/usr/local/lib/mt/bin/mt-watcher.pl"
+      - /var/run/docker.sock:/var/run/docker.sock