diff --git a/.gitea/workflows/watchdob-bell-build.yaml b/.gitea/workflows/watchdob-bell-build.yaml
new file mode 100644
index 0000000..b3e3411
--- /dev/null
+++ b/.gitea/workflows/watchdob-bell-build.yaml
@@ -0,0 +1,32 @@
+on:
+  pull_request:
+    types:
+      - labeled
+      - opened
+      - synchronize
+      - closed
+  workflow_dispatch:
+permissions:
+  pull-requests: read
+
+jobs:
+  build-watchdog-be:
+    runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
+    defaults:
+      run:
+        working-directory: ./watchdog-bell
+    if: contains(github.event.pull_request.labels.*.name,'watchdog-bell')
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+      - uses: gradle/actions/setup-gradle@v3
+      - run: ./gradlew jibBuildTar
+        if: github.event.pull_request.merged == false
+      - run: ./gradlew jib -Djib.to.image=git.usbharu.dev/usbharu/watchdog-bell -Djib.to.auth.username=usbharu -Djib.to.auth.password=${{ secrets.DEPLOY_TOKEN }}
+        if: github.event.pull_request.merged == true
\ No newline at end of file
diff --git a/unos-proto/src/main/proto/watchdog/push_bell.proto b/unos-proto/src/main/proto/watchdog/push_bell.proto
new file mode 100644
index 0000000..7249115
--- /dev/null
+++ b/unos-proto/src/main/proto/watchdog/push_bell.proto
@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+
+package watchdog;
+option go_package = "git.usbharu.dev/usbharu/unos/watchdog";
+
+message Bell {
+  string title = 2;
+  string location = 3;
+  Level level = 4;
+  string message = 5;
+  google.protobuf.Timestamp timestamp = 6;
+
+  enum Level {
+    INFO = 0;
+    WARN = 1;
+    ERROR = 2;
+    FATAL = 3;
+    OK = 4;
+  }
+}
+
+service WatchdogBellService{
+  rpc Push (Bell) returns (google.protobuf.Empty);
+}
\ No newline at end of file
diff --git a/watchdog-bell/.gitignore b/watchdog-bell/.gitignore
new file mode 100644
index 0000000..c426c32
--- /dev/null
+++ b/watchdog-bell/.gitignore
@@ -0,0 +1,36 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
\ No newline at end of file
diff --git a/watchdog-bell/build.gradle.kts b/watchdog-bell/build.gradle.kts
new file mode 100644
index 0000000..4590ee2
--- /dev/null
+++ b/watchdog-bell/build.gradle.kts
@@ -0,0 +1,94 @@
+val ktor_version: String by project
+val kotlin_version: String by project
+val logback_version: String by project
+
+plugins {
+    kotlin("jvm") version "1.9.23"
+    id("io.ktor.plugin") version "2.3.9"
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.23"
+    id("com.google.protobuf") version "0.9.4"
+}
+
+group = "dev.usbharu"
+version = "0.0.1"
+
+application {
+    mainClass.set("io.ktor.server.netty.EngineMain")
+
+    val isDevelopment: Boolean = project.ext.has("development")
+    applicationDefaultJvmArgs = listOf("-Dio.ktor.development=$isDevelopment")
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("io.ktor:ktor-server-core-jvm")
+    implementation("io.ktor:ktor-server-host-common-jvm")
+    implementation("io.ktor:ktor-server-status-pages-jvm")
+    implementation("io.ktor:ktor-server-cors-jvm")
+    implementation("io.ktor:ktor-server-call-logging-jvm")
+    implementation("io.ktor:ktor-server-content-negotiation-jvm")
+    implementation("io.ktor:ktor-serialization-kotlinx-json-jvm")
+    implementation("io.ktor:ktor-server-netty-jvm")
+    implementation("ch.qos.logback:logback-classic:$logback_version")
+    testImplementation("io.ktor:ktor-server-tests-jvm")
+    testImplementation("org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version")
+    implementation("io.grpc:grpc-kotlin-stub:1.4.1")
+    implementation("io.grpc:grpc-protobuf:1.61.1")
+    implementation("com.google.protobuf:protobuf-kotlin:3.25.3")
+    implementation("io.grpc:grpc-netty:1.61.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0")
+    protobuf(files("../unos-proto/src/main/proto/watchdog"))
+    implementation("io.ktor:ktor-client-core:2.3.9")
+    implementation("io.ktor:ktor-client-cio:2.3.9")
+    implementation("dev.usbharu.unos:utils")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+kotlin {
+    jvmToolchain(17)
+}
+
+protobuf {
+    protoc {
+        artifact = "com.google.protobuf:protoc:3.25.3"
+    }
+    plugins {
+        create("grpc") {
+            artifact = "io.grpc:protoc-gen-grpc-java:1.61.1"
+        }
+        create("grpckt") {
+            artifact = "io.grpc:protoc-gen-grpc-kotlin:1.4.1:jdk8@jar"
+        }
+    }
+    generateProtoTasks {
+        all().forEach {
+            it.plugins {
+                create("grpc")
+                create("grpckt")
+            }
+            it.builtins {
+                create("kotlin")
+            }
+        }
+    }
+}
+
+jib {
+    if (System.getProperty("os.name").toLowerCase().contains("windows")) {
+        dockerClient.environment = mapOf(
+            "DOCKER_HOST" to "localhost:2375"
+        )
+    }
+}
+
+ktor {
+    docker {
+        localImageName.set("watchdog-bell")
+        this.imageTag = version.toString()
+    }
+}
\ No newline at end of file
diff --git a/watchdog-bell/gradle.properties b/watchdog-bell/gradle.properties
new file mode 100644
index 0000000..7752477
--- /dev/null
+++ b/watchdog-bell/gradle.properties
@@ -0,0 +1,4 @@
+ktor_version=2.3.9
+kotlin_version=1.9.23
+logback_version=1.4.14
+kotlin.code.style=official
diff --git a/watchdog-bell/gradle/wrapper/gradle-wrapper.jar b/watchdog-bell/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7454180
Binary files /dev/null and b/watchdog-bell/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/watchdog-bell/gradle/wrapper/gradle-wrapper.properties b/watchdog-bell/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..e411586
--- /dev/null
+++ b/watchdog-bell/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/watchdog-bell/gradlew b/watchdog-bell/gradlew
new file mode 100755
index 0000000..1b6c787
--- /dev/null
+++ b/watchdog-bell/gradlew
@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/watchdog-bell/gradlew.bat b/watchdog-bell/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/watchdog-bell/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/watchdog-bell/settings.gradle.kts b/watchdog-bell/settings.gradle.kts
new file mode 100644
index 0000000..14ace30
--- /dev/null
+++ b/watchdog-bell/settings.gradle.kts
@@ -0,0 +1,3 @@
+rootProject.name = "watchdog-bell"
+
+includeBuild("../utils")
\ No newline at end of file
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/Application.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/Application.kt
new file mode 100644
index 0000000..eac1cb8
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/Application.kt
@@ -0,0 +1,38 @@
+package dev.usbharu.watchdog.bell
+
+import dev.usbharu.watchdog.bell.plugins.configureHTTP
+import dev.usbharu.watchdog.bell.plugins.configureMonitoring
+import dev.usbharu.watchdog.bell.plugins.configureRouting
+import dev.usbharu.watchdog.bell.plugins.configureSerialization
+import io.grpc.ServerBuilder
+import io.ktor.client.*
+import io.ktor.client.engine.cio.*
+import io.ktor.server.application.*
+
+fun main(args: Array<String>) {
+    io.ktor.server.netty.EngineMain.main(args)
+}
+
+fun Application.module() {
+    val url = environment.config.property("watchdog-bell.url").getString()
+    val token = environment.config.property("watchdog-bell.token").getString()
+    val port = environment.config.property("watchdog-bell.port").getString().toInt()
+
+    val httpClient = HttpClient(CIO) {
+        expectSuccess = true
+    }
+
+    configureHTTP()
+    configureMonitoring()
+    configureSerialization()
+    configureRouting()
+    val server = ServerBuilder.forPort(port).addService(PushBellService(url, token, httpClient)).build()
+
+    server.start()
+
+    Runtime.getRuntime().addShutdownHook(
+        Thread {
+            server.shutdown()
+        }
+    )
+}
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/PushBellService.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/PushBellService.kt
new file mode 100644
index 0000000..b2e36dc
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/PushBellService.kt
@@ -0,0 +1,59 @@
+package dev.usbharu.watchdog.bell
+
+import com.google.protobuf.Empty
+import dev.usbharu.unos.utils.toInstant
+import io.ktor.client.*
+import io.ktor.client.request.*
+import io.ktor.http.*
+import watchdog.PushBell
+import watchdog.PushBell.Bell.Level.*
+import watchdog.WatchdogBellServiceGrpcKt
+import java.util.*
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.EmptyCoroutineContext
+
+class PushBellService(
+    private val url: String,
+    private val token: String,
+    private val httpClient: HttpClient,
+    coroutineContext: CoroutineContext = EmptyCoroutineContext
+) :
+    WatchdogBellServiceGrpcKt.WatchdogBellServiceCoroutineImplBase(coroutineContext) {
+
+    override suspend fun push(request: PushBell.Bell): Empty {
+
+        val location = "<small>${request.location}</small>"
+        val mentionString = "@usbharu@misskey.usbharu.dev\\n@animeharu@misskey.usbharu.dev\\n"
+
+        val mention = when (request.level) {
+            INFO -> ""
+            WARN -> ""
+            ERROR -> mentionString
+            FATAL -> mentionString
+            OK -> ""
+            UNRECOGNIZED -> mentionString
+        }
+
+        val text =
+            "**${request.level.name}**: ${request.title}\\n$location\\n\\n${request.message}\\n\\n<small>${
+                request.timestamp.toInstant().atZone(TimeZone.getTimeZone("Asia/Tokyo").toZoneId())
+            }</small>\\n$mention#usbharu_server_status"
+
+        val body = """{
+  "visibility": "home",
+  "text": "$text"
+}"""
+
+        println(body)
+        httpClient.post(url + "/api/notes/create") {
+            headers {
+                append(HttpHeaders.Authorization, "Bearer $token")
+            }
+            contentType(ContentType.Application.Json)
+            //language=JSON
+            setBody(body)
+        }
+
+        return Empty.getDefaultInstance()
+    }
+}
\ No newline at end of file
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/HTTP.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/HTTP.kt
new file mode 100644
index 0000000..65cb15e
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/HTTP.kt
@@ -0,0 +1,17 @@
+package dev.usbharu.watchdog.bell.plugins
+
+import io.ktor.http.*
+import io.ktor.server.application.*
+import io.ktor.server.plugins.cors.routing.*
+
+fun Application.configureHTTP() {
+    install(CORS) {
+        allowMethod(HttpMethod.Options)
+        allowMethod(HttpMethod.Put)
+        allowMethod(HttpMethod.Delete)
+        allowMethod(HttpMethod.Patch)
+        allowHeader(HttpHeaders.Authorization)
+        allowHeader("MyCustomHeader")
+        anyHost() // @TODO: Don't do this in production if possible. Try to limit it.
+    }
+}
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Monitoring.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Monitoring.kt
new file mode 100644
index 0000000..1bc57ad
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Monitoring.kt
@@ -0,0 +1,11 @@
+package dev.usbharu.watchdog.bell.plugins
+
+import io.ktor.server.application.*
+import io.ktor.server.plugins.callloging.*
+import org.slf4j.event.Level
+
+fun Application.configureMonitoring() {
+    install(CallLogging) {
+        level = Level.TRACE
+    }
+}
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Routing.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Routing.kt
new file mode 100644
index 0000000..35012ea
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Routing.kt
@@ -0,0 +1,20 @@
+package dev.usbharu.watchdog.bell.plugins
+
+import io.ktor.http.*
+import io.ktor.server.application.*
+import io.ktor.server.plugins.statuspages.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+
+fun Application.configureRouting() {
+    install(StatusPages) {
+        exception<Throwable> { call, cause ->
+            call.respondText(text = "500: $cause", status = HttpStatusCode.InternalServerError)
+        }
+    }
+    routing {
+        get("/") {
+            call.respondText("Hello World!")
+        }
+    }
+}
diff --git a/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Serialization.kt b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Serialization.kt
new file mode 100644
index 0000000..4d796f5
--- /dev/null
+++ b/watchdog-bell/src/main/kotlin/dev/usbharu/watchdog/bell/plugins/Serialization.kt
@@ -0,0 +1,18 @@
+package dev.usbharu.watchdog.bell.plugins
+
+import io.ktor.serialization.kotlinx.json.*
+import io.ktor.server.application.*
+import io.ktor.server.plugins.contentnegotiation.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+
+fun Application.configureSerialization() {
+    install(ContentNegotiation) {
+        json()
+    }
+    routing {
+        get("/json/kotlinx-serialization") {
+            call.respond(mapOf("hello" to "world"))
+        }
+    }
+}
diff --git a/watchdog-bell/src/main/resources/application.conf b/watchdog-bell/src/main/resources/application.conf
new file mode 100644
index 0000000..9c6abb7
--- /dev/null
+++ b/watchdog-bell/src/main/resources/application.conf
@@ -0,0 +1,15 @@
+ktor {
+    deployment {
+        port = 8080
+        port = ${?PORT}
+    }
+    application {
+        modules = [ dev.usbharu.watchdog.bell.ApplicationKt.module ]
+    }
+}
+
+watchdog-bell{
+    port = 50051
+    url = ""
+    token = ""
+}
\ No newline at end of file
diff --git a/watchdog-bell/src/main/resources/logback.xml b/watchdog-bell/src/main/resources/logback.xml
new file mode 100644
index 0000000..3e11d78
--- /dev/null
+++ b/watchdog-bell/src/main/resources/logback.xml
@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="trace">
+        <appender-ref ref="STDOUT"/>
+    </root>
+    <logger name="org.eclipse.jetty" level="INFO"/>
+    <logger name="io.netty" level="INFO"/>
+</configuration>
\ No newline at end of file
diff --git a/watchdog-bell/src/test/kotlin/dev/usbharu/ApplicationTest.kt b/watchdog-bell/src/test/kotlin/dev/usbharu/ApplicationTest.kt
new file mode 100644
index 0000000..f33dc57
--- /dev/null
+++ b/watchdog-bell/src/test/kotlin/dev/usbharu/ApplicationTest.kt
@@ -0,0 +1,22 @@
+package dev.usbharu
+
+import dev.usbharu.watchdog.bell.plugins.configureRouting
+import io.ktor.client.request.*
+import io.ktor.client.statement.*
+import io.ktor.http.*
+import io.ktor.server.testing.*
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class ApplicationTest {
+    @Test
+    fun testRoot() = testApplication {
+        application {
+            configureRouting()
+        }
+        client.get("/").apply {
+            assertEquals(HttpStatusCode.OK, status)
+            assertEquals("Hello World!", bodyAsText())
+        }
+    }
+}