Merge pull request #525 from usbharu/develop

[OWL] Release 0.0.1
2024-08-10 16:46:20 +09:00 · 2024-08-10 16:46:20 +09:00 · 11030e3a63
parent e39347b35b d8d6d053f7
commit 11030e3a63
654 changed files with 32246 additions and 4076 deletions
--- a/.github/monorepo.json
+++ b/.github/monorepo.json
@ -0,0 +1,8 @@
+{
+  "projects": {
+    "./hideout-activitypub": "hideout-activitypub",
+    "./hideout-core": "hideout-core",
+    "./hideout-mastodon": "hideout-mastodon",
+    "./owl": "owl"
+  }
+}
--- a/.github/workflows/master-publish-package.yaml
+++ b/.github/workflows/master-publish-package.yaml
@ -0,0 +1,78 @@
+name: master-publish-package.yaml
+on:
+  pull_request:
+    branches:
+      - "master"
+      - "release-test-master"
+jobs:
+  release-diff-check:
+    name: Release diff check
+    runs-on: ubuntu-latest
+    outputs:
+      diff: ${{ steps.check-diff.outputs.result }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: fetch git
+        run: git fetch --depth 1 origin
+
+      - name: Check diff
+        id: check-diff
+        uses: actions/github-script@v3
+        with:
+          result-encoding: 'json'
+          script: |
+            const fs = require('fs')
+            const {execSync} = require('child_process');
+            const jsonData = JSON.parse(fs.readFileSync('./.github/monorepo.json', 'utf8'));
+            const baseRef = context.payload.pull_request.base.ref
+            console.log(baseRef)
+            var tags = []
+            
+            for (let [key, value] of Object.entries(jsonData.projects)) {
+                console.log(execSync("git branch", {encoding: 'utf8'}))
+                const command = "git diff origin/" + baseRef + " -- HEAD --name-only --relative=" + key + "\n";
+                const output = execSync(command, {encoding: 'utf8'});
+                console.log(output)
+                if (output.trim() === '') {
+                    tags.push(value)
+                }
+            }
+            return tags
+
+      - name: show diff
+        env:
+          DIFF: ${{ steps.check-diff.outputs.result }}
+        run: echo "$DIFF"
+
+  publish-package:
+    runs-on: ubuntu-latest
+    needs: release-diff-check
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Gradle Wrapper Validation
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          cache-read-only: false
+          gradle-home-cache-cleanup: true
+
+      - name: Publish OWL Local
+        if: ${{ github.base_ref == 'release-test-master' && contains( needs.release-diff-check.outputs.diff, 'owl') }}
+        run: ./owl/gradlew :owl:publishMavenPublicationToMavenLocal
+
+      - name: Publish OWL Gitea
+
+        if: ${{ github.base_ref == 'master' && contains( needs.release-diff-check.outputs.diff , 'owl')}}
+        run: ./owl/gradlew :owl:publishMavenPublicationToGiteaRepository
--- a/.github/workflows/pull-request-merge-check.yml
+++ b/.github/workflows/pull-request-merge-check.yml
@ -0,0 +1,120 @@
+name: PullRequest Merge Check
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'owl/**'
+    branches:
+      - "develop"
+    types:
+      - opened # default
+      - reopened # default
+      - synchronize # default
+      - ready_for_review # 必要
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  checks: write
+  id-token: write
+  pull-requests: write
+
+jobs:
+  setup:
+    name: Setup
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Gradle Wrapper Validation
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          cache-read-only: false
+          gradle-home-cache-cleanup: true
+
+      - name: Build
+        run: ./gradlew :hideout-core:classes
+
+  unit-test:
+    name: Unit Test
+    needs: [ setup ]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          cache-read-only: false
+          gradle-home-cache-cleanup: true
+
+      - name: Unit Test
+        run: ./gradlew :hideout-core:koverXmlReport
+
+      - name: Add coverage report to PR
+        if: always()
+        id: kover
+        uses: madrapps/jacoco-report@v1.6.1
+        with:
+          paths: |
+            ${{ github.workspace }}/hideout-core/build/reports/kover/report.xml
+          token: ${{ secrets.GITHUB_TOKEN }}
+          title: Code Coverage
+          update-comment: true
+          min-coverage-overall: 80
+          min-coverage-changed-files: 80
+          coverage-counter-type: LINE
+
+      - name: JUnit Test Report
+        uses: mikepenz/action-junit-report@v4
+        with:
+          report_paths: '**/TEST-*.xml'
+
+  lint:
+    name: Lint
+    needs: [ setup ]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          cache-read-only: false
+          gradle-home-cache-cleanup: true
+
+      - name: Build with Gradle
+        run: ./gradlew :hideout-core:detektMain
+
+      - name: Auto Commit
+        if: ${{ always() }}
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "style: fix lint (CI)"
--- a/.gitignore
+++ b/.gitignore
@ -35,3 +35,16 @@ out/
 ### VS Code ###
 .vscode/
 *.db
+/src/main/resources/static/
+/node_modules/
+/src/main/web/generated/
+/stats.html
+/tomcat/
+/tomcat-e2e/
+/e2eTest.log
+/files/
+
+*.log
+/hideout-core/files/
+/hideout-core/.kotlin/sessions/
+/hideout-mastodon/.kotlin/sessions/
--- a/202
+++ b/202
@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        https://www.apache.org/licenses/
+
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
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+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
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--- a/README.md
+++ b/README.md
@ -0,0 +1,75 @@
+# Hideout
+
+HideoutはMastodon互換APIを備えたSNSで、ActivityPubに対応し、KotlinとSpring Frameworkを使用して制作されているソフトウェアです。現在は開発中で、SNSとして主要な機能を備えていますが、セキュリティの問題や不安定なテーブル定義などがあるためホストすることはおすすめしません。
+
+## 特徴
+
+### ActivityPubでつながるネットワーク
+
+ActivityPubを実装しているためMastodonやMisskey、Pleromaとつながることができます。また、ActivityPub以外の分散型の通信プロトコルを実装することがあるかもしれません。
+
+### Mastodon互換API
+
+OAuth2プロバイダーを含めたほとんどのAPIがMastodonとの互換性を持っているため、既存のMastodon クライアントを使用することができます!また、今後Fedibirdやglitch-soc互換のAPIを実装するかもしれません。
+
+## セルフホスト
+
+> [!CAUTION]
+> **免責事項**
+> 
+> 本ソフトウェアを利用して発生したすべての事象に対して開発者は責任を負いません。
+> 本ソフトウェアはApache License 2.0を採用しています。
+
+現時点でセルフホストはおすすめしませんが、実験用としてホストすることはできます!
+
+### 使用技術
+
+- **Kotlin** 強力な言語機能でアプリケーションの安全性を高めます。
+- **Spring Framework** (Spring Boot/Spring Security/Spring Web/Spring Data) 豊富な機能と堅牢なライブラリでソフトウェアの基幹部分を担います。
+- **OpenAPI** スキーマファーストのエンドポイント自動生成はAPIの安定性を高めます。
+
+### 要件
+
+#### 起動
+
+- Java 21
+- PostgreSQL 12+
+- MongoDB(必須でない) 4.4.x+
+
+#### ビルド
+
+- Java 21
+- Gradle 8+
+
+実験用途として、PostgreSQLはH2DB(バンドル)のPostgreSQL互換モードでも問題ありません。
+
+Java 17でもビルド/起動ができますが、サポートしません。
+
+MongoDBを使用しない場合、構成で`hideout.use-mongodb`をfalseにする必要があります。
+
+### ビルド
+
+今後のリリースでビルド済みjarなどを使う場合はスキップしてください。
+
+
+```bash
+gradle bootJar
+```
+
+`build/libs/hideout-x.x.x.jar`が生成されます。
+
+### 起動
+
+適切に設定した`application-dev.yml`などをクラスパス上に準備します。
+
+`dev`は`prod`などに置き換えたり、[複数指定すること](https://spring.pleiades.io/spring-boot/docs/current/reference/html/application-properties.html#application-properties.core.spring.profiles.active)もできます。
+
+```bash
+java -jar build/libs/hideout-x.x.x.jar --spring.profiles.active=dev
+```
+
+https://spring.pleiades.io/spring-boot/docs/current/reference/html/getting-started.html#getting-started.first-application.executable-jar.gradle
+
+### 注意事項
+
+本ソフトウェアは開発中です。正常に機能しない場合があります。また、連合先に迷惑をかける事になる可能性があります。DB/設定ファイル/その他リソースなどの利用方法に破壊的な変更が入る可能性があります。
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -1,100 +1,70 @@
-val ktor_version: String by project
-val kotlin_version: String by project
-val logback_version: String by project
-val exposed_version: String by project
-val h2_version: String by project
-val koin_version: String by project
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */

 plugins {
-    kotlin("jvm") version "1.8.10"
-    id("io.ktor.plugin") version "2.2.4"
-//    id("org.jetbrains.kotlin.plugin.serialization") version "1.8.10"
+    alias(libs.plugins.kotlin.jvm)
+    alias(libs.plugins.spring.boot)
+    alias(libs.plugins.kotlin.spring)
 }

-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")
-}
-
-tasks.withType<Test> {
-    useJUnitPlatform()
+apply {
+    plugin("io.spring.dependency-management")
 }

 repositories {
    mavenCentral()
-}
+    maven {
+        url = uri("https://git.usbharu.dev/api/packages/usbharu/maven")
+    }
+    maven {
+        name = "GitHubPackages"
+        url = uri("https://maven.pkg.github.com/usbharu/http-signature")
+        credentials {

-kotlin {
-    target {
-        compilations.all {
-            kotlinOptions.jvmTarget = JavaVersion.VERSION_11.toString()
+            username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
+            password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
        }
    }
+    maven {
+        name = "GitHubPackages2"
+        url = uri("https://maven.pkg.github.com/multim-dev/emoji-kt")
+        credentials {
+
+            username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
+            password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
+        }
+    }
+}
+configurations {
+    all {
+        exclude("org.springframework.boot", "spring-boot-starter-logging")
+        exclude("ch.qos.logback", "logback-classic")
+    }
 }

 dependencies {
-    implementation("io.ktor:ktor-server-core-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-auth-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-sessions-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-auto-head-response-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-cors-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-default-headers-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-forwarded-header-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-call-logging-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-content-negotiation-jvm:$ktor_version")
-    implementation("io.ktor:ktor-serialization-jackson:$ktor_version")
-    implementation("org.jetbrains.exposed:exposed-core:$exposed_version")
-    implementation("org.jetbrains.exposed:exposed-jdbc:$exposed_version")
-    implementation("com.h2database:h2:$h2_version")
-    implementation("org.xerial:sqlite-jdbc:3.40.1.0")
-    implementation("io.ktor:ktor-server-websockets-jvm:$ktor_version")
-    implementation("io.ktor:ktor-server-netty-jvm:$ktor_version")
-    implementation("ch.qos.logback:logback-classic:$logback_version")
-
-    implementation("io.insert-koin:koin-core:$koin_version")
-    implementation("io.insert-koin:koin-ktor:$koin_version")
-    implementation("io.insert-koin:koin-logger-slf4j:$koin_version")
-    implementation("io.ktor:ktor-client-logging-jvm:2.2.4")
-    implementation("io.ktor:ktor-server-host-common-jvm:2.2.4")
-    implementation("io.ktor:ktor-server-status-pages-jvm:2.2.4")
-
-    testImplementation("io.ktor:ktor-server-tests-jvm:$ktor_version")
-    testImplementation("org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version")
-    testImplementation ("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.4")
-    testImplementation("io.ktor:ktor-client-mock:$ktor_version")
-
-    implementation("io.ktor:ktor-client-core:$ktor_version")
-    implementation("io.ktor:ktor-client-cio:$ktor_version")
-    implementation("io.ktor:ktor-client-content-negotiation:$ktor_version")
-    testImplementation("io.ktor:ktor-client-mock:$ktor_version")
-    implementation("tech.barbero.http-messages-signing:http-messages-signing-core:1.0.0")
-
-    testImplementation("org.junit.jupiter:junit-jupiter:5.8.1")
-    testImplementation("org.mockito.kotlin:mockito-kotlin:4.1.0")
-    testImplementation("org.mockito:mockito-inline:5.2.0")
-
-
-    implementation("org.drewcarlson:kjob-core:0.6.0")
-    testImplementation("io.ktor:ktor-server-test-host-jvm:2.2.4")
-
-    testImplementation("org.slf4j:slf4j-simple:2.0.7")
-
+    implementation("dev.usbharu:hideout-core:0.0.1")
+    implementation("dev.usbharu:hideout-mastodon:1.0-SNAPSHOT")
 }

-jib {
-    if (System.getProperty("os.name").toLowerCase().contains("windows")) {
-        dockerClient.environment = mapOf(
-            "DOCKER_HOST" to "localhost:2375"
-        )
-    }
+tasks.register("run") {
+    dependsOn(gradle.includedBuild("hideout-core").task(":run"))
 }

-ktor {
-    docker {
-        localImageName.set("hideout")
-    }
+springBoot {
+    mainClass = "dev.usbharu.hideout.SpringApplicationKt"
 }
+
--- a/detekt.yml
+++ b/detekt.yml
@ -0,0 +1,179 @@
+build:
+  maxIssues: 20
+  weights:
+    Indentation: 0
+    MagicNumber: 0
+    EnumEntryNameCase: 0
+    VariableNaming: 0
+    NoNameShadowing: 0
+
+style:
+  ClassOrdering:
+    active: true
+
+  MandatoryBracesIfStatements:
+    active: true
+
+  MandatoryBracesLoops:
+    active: true
+
+  MultilineLambdaItParameter:
+    active: false
+
+  UseEmptyCounterpart:
+    active: true
+
+  ExpressionBodySyntax:
+    active: true
+
+  WildcardImport:
+    active: false
+
+  ReturnCount:
+    active: false
+
+  MagicNumber:
+    ignorePropertyDeclaration: true
+
+  ForbiddenComment:
+    active: false
+
+  ThrowsCount:
+    active: false
+
+  UseCheckOrError:
+    active: false
+
+  UseRequire:
+    active: false
+
+  VarCouldBeVal:
+    ignoreLateinitVar: true
+
+complexity:
+  CognitiveComplexMethod:
+    active: true
+
+  ComplexCondition:
+    active: true
+
+  ComplexInterface:
+    active: true
+    threshold: 30
+
+  LabeledExpression:
+    active: false
+
+  NamedArguments:
+    active: true
+    ignoreArgumentsMatchingNames: true
+    threshold: 5
+
+  NestedBlockDepth:
+    active: true
+
+  NestedScopeFunctions:
+    active: true
+
+  ReplaceSafeCallChainWithRun:
+    active: false
+
+  StringLiteralDuplication:
+    active: false
+
+  LongParameterList:
+    constructorThreshold: 10
+
+  TooManyFunctions:
+    ignoreDeprecated: true
+    ignoreOverridden: true
+    ignorePrivate: true
+
+  LongMethod:
+    active: true
+    excludes:
+      - "**/test/**"
+
+exceptions:
+  ExceptionRaisedInUnexpectedLocation:
+    active: true
+
+  NotImplementedDeclaration:
+    active: false
+
+  ObjectExtendsThrowable:
+    active: true
+
+  ThrowingExceptionInMain:
+    active: true
+
+  ThrowingExceptionsWithoutMessageOrCause:
+    active: true
+
+  ThrowingNewInstanceOfSameException:
+    active: true
+
+  TooGenericExceptionCaught:
+    active: true
+
+  TooGenericExceptionThrown:
+    active: true
+
+formatting:
+  Indentation:
+    indentSize: 4
+
+  NoWildcardImports:
+    active: false
+
+naming:
+  FunctionMaxLength:
+    active: true
+    excludes:
+      - "**/test/**"
+
+  FunctionMinLength:
+    ignoreFunction:
+      - of
+    active: true
+
+  LambdaParameterNaming:
+    active: true
+
+  ConstructorParameterNaming:
+    excludes:
+      - "**/domain/model/ap/*"
+    ignoreOverridden: true
+
+  VariableNaming:
+    excludes:
+      - "**/domain/model/ap/*"
+
+performance:
+  UnnecessaryPartOfBinaryExpression:
+    active: true
+
+  UnnecessaryTemporaryInstantiation:
+    active: true
+
+  SpreadOperator:
+    active: false
+
+potential-bugs:
+  CastToNullableType:
+    active: true
+
+  DontDowncastCollectionTypes:
+    active: true
+
+  ElseCaseInsteadOfExhaustiveWhen:
+    active: true
+
+  HasPlatformType:
+    active: false
+
+coroutines:
+  RedundantSuspendModifier:
+    active: false
+  InjectDispatcher:
+    active: false
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -0,0 +1,11 @@
+version: "3"
+
+services:
+  db:
+    image: postgres:16
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_USER: "postgres"
+      POSTGRES_PASSWORD: "password"
+      POSTGRES_DB: "hideout"
--- a/gradle.properties
+++ b/gradle.properties
@ -1,7 +1,4 @@
-ktor_version=2.2.4
-kotlin_version=1.8.10
-logback_version=1.4.6
-kotlin.code.style=official
-exposed_version=0.41.1
-h2_version=2.1.214
-koin_version=3.3.1
+org.gradle.parallel=true
+org.gradle.configureondemand=true
+org.gradle.caching=true
+org.gradle.jvmargs=-Xmx4096m -XX:+HeapDumpOnOutOfMemoryError -XX:+UseParallelGC --add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED -XX:TieredStopAtLevel=1 -noverify
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
--- a/44
+++ b/44
@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#

 ##############################################################################
 #
@ -55,7 +57,7 @@
 #       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
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@ -80,13 +82,12 @@ do
    esac
 done

-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 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"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit

 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@ -133,22 +134,29 @@ 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.
+    if ! command -v java >/dev/null 2>&1
+    then
+        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
 fi

 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
    case $MAX_FD in #(
      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
        MAX_FD=$( ulimit -H -n ) ||
            warn "Could not query maximum file descriptor limit"
    esac
    case $MAX_FD in  #(
      '' | soft) :;; #(
      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
        ulimit -n "$MAX_FD" ||
            warn "Could not set maximum file descriptor limit to $MAX_FD"
    esac
@ -193,11 +201,15 @@ if "$cygwin" || "$msys" ; then
    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.
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.

 set -- \
        "-Dorg.gradle.appname=$APP_BASE_NAME" \
@ -205,6 +217,12 @@ set -- \
        org.gradle.wrapper.GradleWrapperMain \
        "$@"

+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
--- a/gradlew.bat
+++ b/gradlew.bat
@ -13,8 +13,10 @@
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem

-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
@rem ##########################################################################
@rem
@rem  Gradle startup script for Windows
@ -25,7 +27,8 @@
 if "%OS%"=="Windows_NT" setlocal

 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%

@ -40,13 +43,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome

 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2

 goto fail

@ -56,11 +59,11 @@ 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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2

 goto fail

@ -75,13 +78,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

 :end
@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 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
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%

 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
--- a/hideout-activitypub/build.gradle.kts
+++ b/hideout-activitypub/build.gradle.kts
@ -0,0 +1,21 @@
+plugins {
+    kotlin("jvm") version "1.9.25"
+}
+
+group = "dev.usbharu"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+kotlin {
+    jvmToolchain(21)
+}
--- a/hideout-activitypub/gradle/wrapper/gradle-wrapper.jar
+++ b/hideout-activitypub/gradle/wrapper/gradle-wrapper.jar
--- a/hideout-activitypub/gradle/wrapper/gradle-wrapper.properties
+++ b/hideout-activitypub/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/hideout-activitypub/gradlew
+++ b/hideout-activitypub/gradlew
@ -0,0 +1,252 @@
+#!/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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   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/HEAD/platforms/jvm/plugins-application/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
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
+
+# 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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$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
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"
--- a/hideout-activitypub/gradlew.bat
+++ b/hideout-activitypub/gradlew.bat
@ -0,0 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=.
+@rem This is normally unused
+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% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+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% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/hideout-activitypub/settings.gradle.kts
+++ b/hideout-activitypub/settings.gradle.kts
@ -0,0 +1,5 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+rootProject.name = "hideout-activitypub"
+
--- a/hideout-activitypub/src/main/kotlin/Main.kt
+++ b/hideout-activitypub/src/main/kotlin/Main.kt
@ -0,0 +1,5 @@
+package dev.usbharu
+
+fun main() {
+    println("Hello World!")
+}
--- a/hideout-core/allowed-licenses.json
+++ b/hideout-core/allowed-licenses.json
@ -0,0 +1,25 @@
+{
+  "allowedLicenses": [
+    {
+      "moduleLicense": "Apache License, Version 2.0"
+    },
+    {
+      "moduleLicense": "MIT License"
+    },
+    {
+      "moduleLicense": "MIT-0"
+    },
+    {
+      "moduleLicense": "The BSD License"
+    },
+    {
+      "moduleLicense": "PUBLIC DOMAIN"
+    },
+    {
+      "moduleLicense": "The 2-Clause BSD License"
+    },
+    {
+      "moduleLicense": "GNU GENERAL PUBLIC LICENSE, Version 2 + Classpath Exception"
+    }
+  ]
+}
--- a/hideout-core/build.gradle.kts
+++ b/hideout-core/build.gradle.kts
@ -0,0 +1,245 @@
+import com.github.jk1.license.filter.DependencyFilter
+import com.github.jk1.license.filter.LicenseBundleNormalizer
+import com.github.jk1.license.importer.DependencyDataImporter
+import com.github.jk1.license.importer.XmlReportImporter
+import com.github.jk1.license.render.*
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+plugins {
+    alias(libs.plugins.kotlin.jvm)
+    alias(libs.plugins.detekt)
+    alias(libs.plugins.spring.boot)
+    alias(libs.plugins.kotlin.spring)
+    alias(libs.plugins.kover)
+    alias(libs.plugins.license.report)
+}
+
+apply {
+    plugin("io.spring.dependency-management")
+}
+
+group = "dev.usbharu"
+version = "0.0.1"
+
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+    doFirst {
+        jvmArgs = arrayOf(
+            "--add-opens", "java.base/java.lang=ALL-UNNAMED",
+            "--add-opens", "java.base/java.util=ALL-UNNAMED",
+            "--add-opens", "java.naming/javax.naming=ALL-UNNAMED",
+            "--add-opens", "java.base/java.util.concurrent.locks=ALL-UNNAMED"
+        ).toMutableList()
+    }
+}
+
+kotlin {
+    jvmToolchain(21)
+    compilerOptions {
+        freeCompilerArgs.add("-Xjsr305=strict")
+        jvmTarget = JvmTarget.JVM_21
+    }
+}
+
+
+repositories {
+    mavenCentral()
+    maven {
+        url = uri("https://git.usbharu.dev/api/packages/usbharu/maven")
+    }
+    maven {
+        name = "GitHubPackages"
+        url = uri("https://maven.pkg.github.com/usbharu/http-signature")
+        credentials {
+
+            username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
+            password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
+        }
+    }
+    maven {
+        name = "GitHubPackages2"
+        url = uri("https://maven.pkg.github.com/multim-dev/emoji-kt")
+        credentials {
+
+            username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
+            password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
+        }
+    }
+}
+
+
+val os = org.gradle.nativeplatform.platform.internal
+    .DefaultNativePlatform.getCurrentOperatingSystem()
+
+dependencies {
+    developmentOnly(libs.h2db)
+    detektPlugins(libs.detekt.formatting)
+
+    implementation(libs.bundles.exposed)
+    implementation(libs.bundles.coroutines)
+    implementation(libs.bundles.ktor.client)
+    implementation(libs.bundles.apache.tika)
+    implementation(libs.bundles.openapi)
+//    implementation(libs.bundles.owl.producer)
+//    implementation(libs.bundles.owl.broker)
+    implementation(libs.bundles.spring.boot.oauth2)
+    implementation(libs.bundles.spring.boot.data.mongodb)
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("org.springframework.boot:spring-boot-starter-security")
+    implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
+    implementation("org.springframework.boot:spring-boot-starter-log4j2")
+    implementation("org.springframework.boot:spring-boot-starter-validation")
+    annotationProcessor("org.springframework:spring-context-indexer")
+
+    implementation(libs.blurhash)
+    implementation(libs.aws.s3)
+    implementation(libs.jsoup)
+    implementation(libs.owasp.java.html.sanitizer)
+    implementation(libs.postgresql)
+    implementation(libs.imageio.webp)
+    implementation(libs.thumbnailator)
+    implementation(libs.flyway.core)
+    runtimeOnly(libs.flyway.postgresql)
+
+//    implementation("dev.usbharu:owl-common-serialize-jackson:0.0.1")
+
+    implementation(libs.javacv) {
+        exclude(module = "opencv")
+        exclude(module = "flycapture")
+        exclude(module = "artoolkitplus")
+        exclude(module = "libdc1394")
+        exclude(module = "librealsense")
+        exclude(module = "librealsense2")
+        exclude(module = "tesseract")
+        exclude(module = "libfreenect")
+        exclude(module = "libfreenect2")
+    }
+    if (os.isWindows) {
+        implementation(variantOf(libs.javacv.ffmpeg) { classifier("windows-x86_64") })
+    } else {
+        implementation(variantOf(libs.javacv.ffmpeg) { classifier("linux-x86_64") })
+    }
+
+    implementation("dev.usbharu:http-signature:1.0.0")
+    implementation("dev.usbharu:emoji-kt:2.0.0")
+
+
+
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation(libs.kotlin.junit)
+    testImplementation(libs.coroutines.test)
+    testImplementation(libs.ktor.client.mock)
+    testImplementation(libs.h2db)
+    testImplementation("org.mockito.kotlin:mockito-kotlin:5.4.0")
+    testImplementation("org.mockito:mockito-inline:5.2.0")
+    testImplementation("nl.jqno.equalsverifier:equalsverifier:3.16.1")
+    testImplementation("com.jparams:to-string-verifier:1.4.8")
+
+}
+
+detekt {
+    parallel = true
+    config = files("../detekt.yml")
+    buildUponDefaultConfig = true
+    basePath = "${rootDir.absolutePath}/src/main/kotlin"
+    autoCorrect = true
+}
+
+configurations.matching { it.name == "detekt" }.all {
+    resolutionStrategy.eachDependency {
+        if (requested.group == "org.jetbrains.kotlin") {
+            useVersion(io.gitlab.arturbosch.detekt.getSupportedKotlinVersion())
+        }
+    }
+}
+
+tasks.withType<io.gitlab.arturbosch.detekt.Detekt> {
+    exclude("**/generated/**")
+    doFirst {
+
+    }
+    setSource("src/main/kotlin")
+    exclude("build/")
+}
+
+tasks.withType<io.gitlab.arturbosch.detekt.Detekt>().configureEach {
+    exclude("**/org/koin/ksp/generated/**", "**/generated/**")
+}
+
+tasks.withType<io.gitlab.arturbosch.detekt.DetektCreateBaselineTask>().configureEach {
+    exclude("**/org/koin/ksp/generated/**", "**/generated/**")
+}
+
+configurations {
+    all {
+        exclude("org.springframework.boot", "spring-boot-starter-logging")
+        exclude("ch.qos.logback", "logback-classic")
+    }
+}
+
+project.gradle.taskGraph.whenReady {
+    println(this.allTasks)
+    this.allTasks.map { println(it.name) }
+    if (this.hasTask(":koverGenerateArtifact")) {
+        println("has task")
+        val task = this.allTasks.find { it.name == "test" }
+        val verificationTask = task as VerificationTask
+        verificationTask.ignoreFailures = true
+    }
+}
+
+kover {
+    currentProject {
+        sources {
+            excludedSourceSets.addAll(
+                "aot", "e2eTest", "intTest"
+            )
+
+        }
+    }
+
+    reports {
+        filters {
+            excludes {
+                packages(
+                    "dev.usbharu.hideout.activitypub.domain.exception",
+                    "dev.usbharu.hideout.core.domain.exception",
+                    "dev.usbharu.hideout.core.domain.exception.media",
+                    "dev.usbharu.hideout.core.domain.exception.resource",
+                    "dev.usbharu.hideout.core.domain.exception.resource.local"
+                )
+                annotatedBy("org.springframework.context.annotation.Configuration")
+                annotatedBy("org.springframework.boot.context.properties.ConfigurationProperties")
+                packages(
+                    "dev.usbharu.hideout.controller.mastodon.generated",
+                    "dev.usbharu.hideout.domain.mastodon.model.generated"
+                )
+                packages("org.springframework")
+                packages("org.jetbrains")
+            }
+        }
+    }
+}
+
+springBoot {
+    buildInfo {
+
+    }
+}
+
+licenseReport {
+    excludeOwnGroup = true
+
+    importers = arrayOf<DependencyDataImporter>(XmlReportImporter("hideout", File("$projectDir/license-list.xml")))
+    renderers = arrayOf<ReportRenderer>(
+        InventoryHtmlReportRenderer(),
+        CsvReportRenderer(),
+        JsonReportRenderer(),
+        XmlReportRenderer()
+    )
+    filters = arrayOf<DependencyFilter>(LicenseBundleNormalizer("$projectDir/license-normalizer-bundle.json", true))
+    allowedLicensesFile = File("$projectDir/allowed-licenses.json")
+    configurations = arrayOf("productionRuntimeClasspath")
+}
--- a/hideout-core/gradle.properties
+++ b/hideout-core/gradle.properties
@ -0,0 +1,22 @@
+#
+# Copyright (C) 2024 usbharu
+#
+# 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
+#
+#      http://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.
+#
+kotlin.code.style=official
+org.gradle.parallel=true
+org.gradle.configureondemand=true
+org.gradle.caching=true
+org.gradle.jvmargs=-Xmx4096m -XX:+HeapDumpOnOutOfMemoryError -XX:+UseParallelGC
+org.gradle.configuration-cache=true
+org.gradle.configuration-cache.problems=warn
--- a/hideout-core/gradle/wrapper/gradle-wrapper.jar
+++ b/hideout-core/gradle/wrapper/gradle-wrapper.jar
--- a/hideout-core/gradle/wrapper/gradle-wrapper.properties
+++ b/hideout-core/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/hideout-core/gradlew
+++ b/hideout-core/gradlew
@ -0,0 +1,252 @@
+#!/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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   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/HEAD/platforms/jvm/plugins-application/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
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
+
+# 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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$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
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"
--- a/hideout-core/gradlew.bat
+++ b/hideout-core/gradlew.bat
@ -0,0 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=.
+@rem This is normally unused
+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% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+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% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/hideout-core/license-normalizer-bundle.json
+++ b/hideout-core/license-normalizer-bundle.json
@ -0,0 +1,56 @@
+{
+  "bundles": [
+    {
+      "bundleName": "Apache-2.0",
+      "licenseName": "Apache License, Version 2.0",
+      "licenseUrl": "https://www.apache.org/licenses/LICENSE-2.0.txt"
+    },
+    {
+      "bundleName": "EPL-1.0",
+      "licenseName": "Eclipse Public License - v 1.0",
+      "licenseUrl": "http://www.eclipse.org/legal/epl-v10.html"
+    }
+  ],
+  "transformationRules": [
+    {
+      "bundleName": "Apache-2.0",
+      "licenseNamePattern": ".*The Apache Software License, Version 2.0.*"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseNamePattern": "Apache 2"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseUrlPattern": "http://www.apache.org/licenses/LICENSE-2.0.txt"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseUrlPattern": "https://www.apache.org/licenses/LICENSE-2.0"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseUrlPattern": "https://aws.amazon.com/apache2.0"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseUrlPattern": "https://www.apache.org/licenses/LICENSE-2.0.txt"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseNamePattern": "Special Apache"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseNamePattern": "Keep this name"
+    },
+    {
+      "bundleName": "Apache-2.0",
+      "licenseNamePattern": "The Apache Software License, Version 2.0"
+    },
+    {
+      "bundleName": "EPL-1.0",
+      "licenseNamePattern": "EPL 1.0"
+    }
+  ]
+}
--- a/hideout-core/settings.gradle.kts
+++ b/hideout-core/settings.gradle.kts
@ -0,0 +1,18 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+rootProject.name = "hideout-core"
+
+includeBuild("../owl")
+
+dependencyResolutionManagement {
+    repositories {
+        mavenCentral()
+    }
+
+    versionCatalogs {
+        create("libs") {
+            from(files("../libs.versions.toml"))
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/SpringApplication.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/SpringApplication.kt
@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.context.properties.ConfigurationPropertiesScan
+import org.springframework.boot.runApplication
+import org.springframework.cache.annotation.EnableCaching
+
+@SpringBootApplication
+@ConfigurationPropertiesScan
+@EnableCaching
+class SpringApplication
+
+@Suppress("SpreadOperator")
+fun main(args: Array<String>) {
+    runApplication<SpringApplication>(*args)
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/DeleteLocalActor.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/DeleteLocalActor.kt
@ -0,0 +1,5 @@
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+
+data class DeleteLocalActor(val actorId: ActorId)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/GetUserDetail.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/GetUserDetail.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+data class GetUserDetail(val id: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/GetUserDetailApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/GetUserDetailApplicationService.kt
@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.emoji.CustomEmojiRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class GetUserDetailApplicationService(
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+    private val customEmojiRepository: CustomEmojiRepository,
+    transaction: Transaction,
+) :
+    AbstractApplicationService<GetUserDetail, UserDetail>(transaction, Companion.logger) {
+    override suspend fun internalExecute(command: GetUserDetail, principal: Principal): UserDetail {
+        val userDetail = userDetailRepository.findById(UserDetailId(command.id))
+            ?: throw IllegalArgumentException("User ${command.id} does not exist")
+        val actor = actorRepository.findById(userDetail.actorId)
+            ?: throw InternalServerException("Actor ${userDetail.actorId} not found")
+
+        val emojis = customEmojiRepository.findByIds(actor.emojis.map { it.emojiId })
+
+        return UserDetail.of(actor, userDetail, emojis)
+    }
+
+    companion object {
+        val logger = LoggerFactory.getLogger(GetUserDetailApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActor.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActor.kt
@ -0,0 +1,3 @@
+package dev.usbharu.hideout.core.application.actor
+
+data class MigrationLocalActor(val from: Long, val to: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt
@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import dev.usbharu.hideout.core.domain.service.actor.local.AccountMigrationCheck.*
+import dev.usbharu.hideout.core.domain.service.actor.local.LocalActorMigrationCheckDomainService
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class MigrationLocalActorApplicationService(
+    private val actorRepository: ActorRepository,
+    private val localActorMigrationCheckDomainService: LocalActorMigrationCheckDomainService,
+    transaction: Transaction,
+    private val userDetailRepository: UserDetailRepository,
+) : LocalUserAbstractApplicationService<MigrationLocalActor, Unit>(transaction, logger) {
+
+    override suspend fun internalExecute(command: MigrationLocalActor, principal: FromApi) {
+        if (command.from != principal.actorId.id) {
+            throw PermissionDeniedException()
+        }
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)
+            ?: throw InternalServerException("User detail ${principal.userDetailId} not found.")
+
+        val fromActorId = ActorId(command.from)
+        val toActorId = ActorId(command.to)
+
+        val fromActor =
+            actorRepository.findById(fromActorId) ?: throw IllegalArgumentException("Actor ${command.from} not found.")
+        val toActor =
+            actorRepository.findById(toActorId) ?: throw IllegalArgumentException("Actor ${command.to} not found.")
+
+        val canAccountMigration =
+            localActorMigrationCheckDomainService.canAccountMigration(userDetail, fromActor, toActor)
+        if (canAccountMigration.canMigration) {
+            fromActor.moveTo = toActorId
+            actorRepository.save(fromActor)
+        } else when (canAccountMigration) {
+            is AlreadyMoved -> throw IllegalArgumentException(canAccountMigration.message)
+            is CanAccountMigration -> throw InternalServerException()
+            is CircularReferences -> throw IllegalArgumentException(canAccountMigration.message)
+            is SelfReferences -> throw IllegalArgumentException("Self references are not supported")
+            is AlsoKnownAsNotFound -> throw IllegalArgumentException(canAccountMigration.message)
+            is MigrationCoolDown -> throw IllegalArgumentException(canAccountMigration.message)
+        }
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(MigrationLocalActorApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/RegisterLocalActor.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/RegisterLocalActor.kt
@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+data class RegisterLocalActor(
+    val name: String,
+    val password: String,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/RegisterLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/RegisterLocalActorApplicationService.kt
@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.instance.InstanceRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetail
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import dev.usbharu.hideout.core.domain.service.actor.local.LocalActorDomainService
+import dev.usbharu.hideout.core.domain.service.userdetail.UserDetailDomainService
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import dev.usbharu.hideout.core.infrastructure.factory.ActorFactoryImpl
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+import java.net.URI
+
+@Service
+class RegisterLocalActorApplicationService(
+    transaction: Transaction,
+    private val actorDomainService: LocalActorDomainService,
+    private val actorRepository: ActorRepository,
+    private val actorFactoryImpl: ActorFactoryImpl,
+    private val instanceRepository: InstanceRepository,
+    private val applicationConfig: ApplicationConfig,
+    private val userDetailDomainService: UserDetailDomainService,
+    private val userDetailRepository: UserDetailRepository,
+    private val idGenerateService: IdGenerateService,
+) : AbstractApplicationService<RegisterLocalActor, URI>(transaction, Companion.logger) {
+
+    override suspend fun internalExecute(command: RegisterLocalActor, principal: Principal): URI {
+        if (actorDomainService.usernameAlreadyUse(command.name)) {
+            throw IllegalArgumentException("Username already exists")
+        }
+        val instance = instanceRepository.findByUrl(applicationConfig.url.toURI())
+            ?: throw InternalServerException("Local instance not found.")
+
+        val actor = actorFactoryImpl.createLocal(
+            command.name,
+            actorDomainService.generateKeyPair(),
+            instance.id
+        )
+        actorRepository.save(actor)
+        val userDetail = UserDetail.create(
+            id = UserDetailId(idGenerateService.generateId()),
+            actorId = actor.id,
+            password = userDetailDomainService.hashPassword(command.password),
+            autoAcceptFolloweeFollowRequest = false,
+            lastMigration = null,
+            homeTimelineId = null
+        )
+        userDetailRepository.save(userDetail)
+        return actor.url
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(RegisterLocalActorApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/SetAlsoKnownAsLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/SetAlsoKnownAsLocalActorApplicationService.kt
@ -0,0 +1,8 @@
+package dev.usbharu.hideout.core.application.actor
+
+import org.springframework.stereotype.Service
+
+@Service
+interface SetAlsoKnownAsLocalActorApplicationService {
+    suspend fun setAlsoKnownAs(actorId: Long, alsoKnownAs: List<Long>)
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt
@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class StartDeleteLocalActorApplicationService(
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+) : LocalUserAbstractApplicationService<DeleteLocalActor, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: DeleteLocalActor, principal: FromApi) {
+        if (command.actorId != principal.actorId) {
+            throw PermissionDeniedException()
+        }
+        val findById = actorRepository.findById(command.actorId)
+            ?: throw InternalServerException("Actor ${command.actorId} Not found")
+        findById.delete()
+        actorRepository.save(findById)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(StartDeleteLocalActorApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/SuspendLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/SuspendLocalActorApplicationService.kt
@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import org.springframework.stereotype.Service
+
+@Service
+class SuspendLocalActorApplicationService(
+    private val transaction: Transaction,
+    private val actorRepository: ActorRepository,
+) {
+    suspend fun suspend(actorId: Long, executor: ActorId) {
+        transaction.transaction {
+            val id = ActorId(actorId)
+
+            val actor = actorRepository.findById(id)!!
+            actor.suspend = true
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/UnsuspendLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/UnsuspendLocalActorApplicationService.kt
@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import org.springframework.stereotype.Service
+
+@Service
+class UnsuspendLocalActorApplicationService(
+    private val transaction: Transaction,
+    private val actorRepository: ActorRepository,
+) {
+    suspend fun unsuspend(actorId: Long, executor: Long) {
+        transaction.transaction {
+            val findById = actorRepository.findById(ActorId(actorId))!!
+
+            findById.suspend = false
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/UserDetail.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/UserDetail.kt
@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.actor
+
+import dev.usbharu.hideout.core.domain.model.actor.Actor
+import dev.usbharu.hideout.core.domain.model.emoji.CustomEmoji
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetail
+import java.time.Instant
+
+data class UserDetail(
+    val id: Long,
+    val userDetailId: Long,
+    val name: String,
+    val domain: String,
+    val screenName: String,
+    val url: String,
+    val iconUrl: String,
+    val description: String,
+    val locked: Boolean,
+    val emojis: List<CustomEmoji>,
+    val createdAt: Instant,
+    val lastPostAt: Instant?,
+    val postsCount: Int,
+    val followingCount: Int?,
+    val followersCount: Int?,
+    val moveTo: Long?,
+    val suspend: Boolean,
+) {
+    companion object {
+        fun of(
+            actor: Actor,
+            userDetail: UserDetail,
+            customEmojis: List<CustomEmoji>,
+        ): dev.usbharu.hideout.core.application.actor.UserDetail {
+            return UserDetail(
+                id = actor.id.id,
+                userDetailId = userDetail.id.id,
+                name = actor.name.name,
+                domain = actor.domain.domain,
+                screenName = actor.screenName.screenName,
+                url = actor.url.toString(),
+                iconUrl = actor.url.toString(),
+                description = actor.description.description,
+                locked = actor.locked,
+                emojis = customEmojis,
+                createdAt = actor.createdAt,
+                lastPostAt = actor.lastPostAt,
+                postsCount = actor.postsCount.postsCount,
+                followingCount = actor.followingCount?.relationshipCount,
+                followersCount = actor.followersCount?.relationshipCount,
+                moveTo = actor.moveTo?.id,
+                suspend = actor.suspend
+            )
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisterApplication.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisterApplication.kt
@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.application
+
+import java.net.URI
+
+data class RegisterApplication(
+    val name: String,
+    val redirectUris: Set<URI>,
+    val useRefreshToken: Boolean,
+    val scopes: Set<String>,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisterApplicationApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisterApplicationApplicationService.kt
@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.application
+
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.application.Application
+import dev.usbharu.hideout.core.domain.model.application.ApplicationId
+import dev.usbharu.hideout.core.domain.model.application.ApplicationName
+import dev.usbharu.hideout.core.domain.model.application.ApplicationRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.service.userdetail.PasswordEncoder
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import dev.usbharu.hideout.core.infrastructure.springframework.oauth2.SecureTokenGenerator
+import org.slf4j.LoggerFactory
+import org.springframework.security.oauth2.core.AuthorizationGrantType
+import org.springframework.security.oauth2.core.ClientAuthenticationMethod
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClient
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository
+import org.springframework.security.oauth2.server.authorization.settings.ClientSettings
+import org.springframework.security.oauth2.server.authorization.settings.TokenSettings
+import org.springframework.stereotype.Service
+import java.time.Duration
+
+@Service
+class RegisterApplicationApplicationService(
+    private val idGenerateService: IdGenerateService,
+    private val passwordEncoder: PasswordEncoder,
+    private val secureTokenGenerator: SecureTokenGenerator,
+    private val registeredClientRepository: RegisteredClientRepository,
+    transaction: Transaction,
+    private val applicationRepository: ApplicationRepository,
+) : AbstractApplicationService<RegisterApplication, RegisteredApplication>(transaction, logger) {
+
+    override suspend fun internalExecute(command: RegisterApplication, principal: Principal): RegisteredApplication {
+        val id = idGenerateService.generateId()
+        val clientSecret = secureTokenGenerator.generate()
+        val registeredClient = RegisteredClient
+            .withId(id.toString())
+            .clientId(id.toString())
+            .clientSecret(passwordEncoder.encode(clientSecret))
+            .clientName(command.name)
+            .clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_POST)
+            .clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_JWT)
+            .clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_BASIC)
+            .authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
+            .authorizationGrantType(AuthorizationGrantType.CLIENT_CREDENTIALS)
+            .apply {
+                if (command.useRefreshToken) {
+                    authorizationGrantType(AuthorizationGrantType.REFRESH_TOKEN)
+                } else {
+                    tokenSettings(
+                        TokenSettings
+                            .builder()
+                            .accessTokenTimeToLive(Duration.ofSeconds(31536000000))
+                            .build()
+                    )
+                }
+            }
+            .redirectUris { set ->
+                set.addAll(command.redirectUris.map { it.toString() })
+            }
+            .clientSettings(ClientSettings.builder().requireAuthorizationConsent(true).build())
+            .scopes { it.addAll(command.scopes) }
+            .build()
+        registeredClientRepository.save(registeredClient)
+
+        val application = Application(ApplicationId(id), ApplicationName(command.name))
+
+        applicationRepository.save(application)
+        return RegisteredApplication(
+            id = id,
+            name = command.name,
+            clientSecret = clientSecret,
+            clientId = id.toString(),
+            redirectUris = command.redirectUris
+        )
+    }
+
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(RegisterApplicationApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisteredApplication.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/application/RegisteredApplication.kt
@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.application
+
+import java.net.URI
+
+data class RegisteredApplication(
+    val id: Long,
+    val name: String,
+    val redirectUris: Set<URI>,
+    val clientSecret: String,
+    val clientId: String,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/DomainEventSubscriber.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/DomainEventSubscriber.kt
@ -0,0 +1,10 @@
+package dev.usbharu.hideout.core.application.domainevent.subscribers
+
+import dev.usbharu.hideout.core.domain.shared.domainevent.DomainEvent
+import dev.usbharu.hideout.core.domain.shared.domainevent.DomainEventBody
+
+interface DomainEventSubscriber {
+    fun <T : DomainEventBody> subscribe(eventName: String, domainEventConsumer: DomainEventConsumer<T>)
+}
+
+typealias DomainEventConsumer<T> = suspend (DomainEvent<T>) -> Unit
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/Subscriber.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/Subscriber.kt
@ -0,0 +1,3 @@
+package dev.usbharu.hideout.core.application.domainevent.subscribers
+
+interface Subscriber
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/SubscriberRunner.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/SubscriberRunner.kt
@ -0,0 +1,11 @@
+package dev.usbharu.hideout.core.application.domainevent.subscribers
+
+import org.springframework.boot.ApplicationArguments
+import org.springframework.boot.ApplicationRunner
+import org.springframework.stereotype.Component
+
+@Component
+class SubscriberRunner(subscribers: List<Subscriber>) : ApplicationRunner {
+    override fun run(args: ApplicationArguments?) {
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/TimelinePostCreateSubscriber.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/TimelinePostCreateSubscriber.kt
@ -0,0 +1,22 @@
+package dev.usbharu.hideout.core.application.domainevent.subscribers
+
+import dev.usbharu.hideout.core.domain.event.post.PostEvent
+import dev.usbharu.hideout.core.domain.event.post.PostEventBody
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Component
+
+@Component
+class TimelinePostCreateSubscriber(domainEventSubscriber: DomainEventSubscriber) : Subscriber {
+    init {
+        domainEventSubscriber.subscribe<PostEventBody>(PostEvent.CREATE.eventName) {
+            val post = it.body.getPost()
+            val actor = it.body.getActor()
+
+            logger.info("New Post! : {}", post)
+        }
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(TimelinePostCreateSubscriber::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/TimelineRelationshipFollowSubscriber.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/domainevent/subscribers/TimelineRelationshipFollowSubscriber.kt
@ -0,0 +1,50 @@
+package dev.usbharu.hideout.core.application.domainevent.subscribers
+
+import dev.usbharu.hideout.core.application.timeline.AddTimelineRelationship
+import dev.usbharu.hideout.core.application.timeline.UserAddTimelineRelationshipApplicationService
+import dev.usbharu.hideout.core.domain.event.relationship.RelationshipEvent
+import dev.usbharu.hideout.core.domain.event.relationship.RelationshipEventBody
+import dev.usbharu.hideout.core.domain.model.timelinerelationship.TimelineRelationship
+import dev.usbharu.hideout.core.domain.model.timelinerelationship.TimelineRelationshipId
+import dev.usbharu.hideout.core.domain.model.timelinerelationship.Visible
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Component
+
+@Component
+class TimelineRelationshipFollowSubscriber(
+    private val userAddTimelineRelationshipApplicationService: UserAddTimelineRelationshipApplicationService,
+    private val idGenerateService: IdGenerateService,
+    private val userDetailRepository: UserDetailRepository,
+    domainEventSubscriber: DomainEventSubscriber
+) : Subscriber {
+
+    init {
+        domainEventSubscriber.subscribe<RelationshipEventBody>(RelationshipEvent.FOLLOW.eventName) {
+            val relationship = it.body.getRelationship()
+            val userDetail = userDetailRepository.findByActorId(relationship.actorId.id) ?: throw Exception()
+            if (userDetail.homeTimelineId == null) {
+                logger.warn("Home timeline for ${relationship.actorId} is not found")
+                return@subscribe
+            }
+            userAddTimelineRelationshipApplicationService.execute(
+                AddTimelineRelationship(
+                    TimelineRelationship(
+                        TimelineRelationshipId(idGenerateService.generateId()),
+                        userDetail.homeTimelineId,
+                        relationship.targetActorId,
+                        Visible.FOLLOWERS
+                    )
+                ), it.body.principal
+            )
+
+
+        }
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(TimelineRelationshipFollowSubscriber::class.java)
+    }
+
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/exception/InternalServerException.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/exception/InternalServerException.kt
@ -0,0 +1,14 @@
+package dev.usbharu.hideout.core.application.exception
+
+class InternalServerException : RuntimeException {
+    constructor() : super()
+    constructor(message: String?) : super(message)
+    constructor(message: String?, cause: Throwable?) : super(message, cause)
+    constructor(cause: Throwable?) : super(cause)
+    constructor(message: String?, cause: Throwable?, enableSuppression: Boolean, writableStackTrace: Boolean) : super(
+        message,
+        cause,
+        enableSuppression,
+        writableStackTrace
+    )
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/exception/PermissionDeniedException.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/exception/PermissionDeniedException.kt
@ -0,0 +1,14 @@
+package dev.usbharu.hideout.core.application.exception
+
+class PermissionDeniedException : RuntimeException {
+    constructor() : super()
+    constructor(message: String?) : super(message)
+    constructor(message: String?, cause: Throwable?) : super(message, cause)
+    constructor(cause: Throwable?) : super(cause)
+    constructor(message: String?, cause: Throwable?, enableSuppression: Boolean, writableStackTrace: Boolean) : super(
+        message,
+        cause,
+        enableSuppression,
+        writableStackTrace
+    )
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/DeleteFilter.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/DeleteFilter.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+data class DeleteFilter(val filterId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/Filter.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/Filter.kt
@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.domain.model.filter.Filter
+import dev.usbharu.hideout.core.domain.model.filter.FilterAction
+import dev.usbharu.hideout.core.domain.model.filter.FilterContext
+
+data class Filter(
+    val filterId: Long,
+    val userDetailId: Long,
+    val name: String,
+    val filterContext: Set<FilterContext>,
+    val filterAction: FilterAction,
+    val filterKeywords: Set<FilterKeyword>,
+) {
+    companion object {
+        fun of(filter: Filter): dev.usbharu.hideout.core.application.filter.Filter {
+            return Filter(
+                filterId = filter.id.id,
+                userDetailId = filter.userDetailId.id,
+                name = filter.name.name,
+                filterContext = filter.filterContext,
+                filterAction = filter.filterAction,
+                filterKeywords = filter.filterKeywords.map {
+                    FilterKeyword(
+                        it.id.id,
+                        it.keyword.keyword,
+                        it.mode
+                    )
+                }.toSet()
+            )
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/FilterKeyword.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/FilterKeyword.kt
@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.domain.model.filter.FilterMode
+
+data class FilterKeyword(
+    val id: Long,
+    val keyword: String,
+    val filterMode: FilterMode,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/GetFilter.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/GetFilter.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+data class GetFilter(val filterId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/RegisterFilter.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/RegisterFilter.kt
@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.domain.model.filter.FilterAction
+import dev.usbharu.hideout.core.domain.model.filter.FilterContext
+
+data class RegisterFilter(
+    val filterName: String,
+    val filterContext: Set<FilterContext>,
+    val filterAction: FilterAction,
+    val filterKeywords: Set<RegisterFilterKeyword>,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/RegisterFilterKeyword.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/RegisterFilterKeyword.kt
@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.domain.model.filter.FilterMode
+
+data class RegisterFilterKeyword(
+    val keyword: String,
+    val filterMode: FilterMode,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt
@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.filter.FilterId
+import dev.usbharu.hideout.core.domain.model.filter.FilterRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserDeleteFilterApplicationService(private val filterRepository: FilterRepository, transaction: Transaction) :
+    LocalUserAbstractApplicationService<DeleteFilter, Unit>(
+        transaction,
+        logger
+    ) {
+    override suspend fun internalExecute(command: DeleteFilter, principal: FromApi) {
+        val filter =
+            filterRepository.findByFilterId(FilterId(command.filterId)) ?: throw IllegalArgumentException("not found")
+        if (filter.userDetailId != principal.userDetailId) {
+            throw PermissionDeniedException()
+        }
+        filterRepository.delete(filter)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserDeleteFilterApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt
@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.filter.FilterId
+import dev.usbharu.hideout.core.domain.model.filter.FilterRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserGetFilterApplicationService(private val filterRepository: FilterRepository, transaction: Transaction) :
+    LocalUserAbstractApplicationService<GetFilter, Filter>(
+        transaction,
+        logger
+    ) {
+    override suspend fun internalExecute(command: GetFilter, principal: FromApi): Filter {
+        val filter =
+            filterRepository.findByFilterId(FilterId(command.filterId)) ?: throw IllegalArgumentException("Not Found")
+        if (filter.userDetailId != principal.userDetailId) {
+            throw PermissionDeniedException()
+        }
+        return Filter.of(filter)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserGetFilterApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt
@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.filter
+
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.filter.*
+import dev.usbharu.hideout.core.domain.model.filter.FilterKeyword
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserRegisterFilterApplicationService(
+    private val idGenerateService: IdGenerateService,
+    private val filterRepository: FilterRepository,
+    transaction: Transaction,
+) :
+    LocalUserAbstractApplicationService<RegisterFilter, Filter>(
+        transaction,
+        logger
+    ) {
+
+    override suspend fun internalExecute(command: RegisterFilter, principal: FromApi): Filter {
+
+        val filter = dev.usbharu.hideout.core.domain.model.filter.Filter.create(
+            id = FilterId(idGenerateService.generateId()),
+            userDetailId = principal.userDetailId,
+            name = FilterName(command.filterName),
+            filterContext = command.filterContext,
+            filterAction = command.filterAction,
+            filterKeywords = command.filterKeywords
+                .map {
+                    FilterKeyword(
+                        FilterKeywordId(idGenerateService.generateId()),
+                        FilterKeywordKeyword(it.keyword),
+                        it.filterMode
+                    )
+                }.toSet()
+        )
+
+        filterRepository.save(filter)
+        return Filter.of(filter)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserRegisterFilterApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/InitLocalInstanceApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/InitLocalInstanceApplicationService.kt
@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.instance
+
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.instance.*
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import org.springframework.boot.context.event.ApplicationReadyEvent
+import org.springframework.boot.info.BuildProperties
+import org.springframework.context.event.EventListener
+import org.springframework.stereotype.Service
+import java.time.Instant
+
+@Service
+class InitLocalInstanceApplicationService(
+    private val applicationConfig: ApplicationConfig,
+    private val instanceRepository: InstanceRepository,
+    private val idGenerateService: IdGenerateService,
+    private val buildProperties: BuildProperties,
+    private val transaction: Transaction,
+) {
+    @EventListener(ApplicationReadyEvent::class)
+    suspend fun init() = transaction.transaction {
+        val findByUrl = instanceRepository.findByUrl(applicationConfig.url.toURI())
+
+        if (findByUrl == null) {
+            val instance = Instance(
+                id = InstanceId(idGenerateService.generateId()),
+                name = InstanceName(applicationConfig.url.host),
+                description = InstanceDescription(""),
+                url = applicationConfig.url.toURI(),
+                iconUrl = applicationConfig.url.toURI(),
+                sharedInbox = null,
+                software = InstanceSoftware("hideout"),
+                version = InstanceVersion(buildProperties.version),
+                isBlocked = false,
+                isMuted = false,
+                moderationNote = InstanceModerationNote(""),
+                createdAt = Instant.now(),
+            )
+            instanceRepository.save(instance)
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/Media.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/Media.kt
@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.media
+
+import dev.usbharu.hideout.core.domain.model.media.FileType
+import dev.usbharu.hideout.core.domain.model.media.Media
+import dev.usbharu.hideout.core.domain.model.media.MimeType
+import java.net.URI
+
+data class Media(
+    val id: Long,
+    val name: String,
+    val url: URI,
+    val thumbprintURI: URI?,
+    val remoteURL: URI?,
+    val type: FileType,
+    val mimeType: MimeType,
+    val blurHash: String?,
+    val description: String?
+) {
+    companion object {
+        fun of(media: Media): dev.usbharu.hideout.core.application.media.Media {
+            return Media(
+                id = media.id.id,
+                name = media.name.name,
+                url = media.url,
+                thumbprintURI = media.thumbnailUrl,
+                remoteURL = media.remoteUrl,
+                type = media.type,
+                mimeType = media.mimeType,
+                blurHash = media.blurHash?.hash,
+                description = media.description?.description
+            )
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMedia.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMedia.kt
@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.media
+
+import java.net.URI
+import java.nio.file.Path
+
+data class UploadMedia(val path: Path, val name: String, val remoteUri: URI?, val description: String?)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt
@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.media
+
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.media.*
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
+import dev.usbharu.hideout.core.external.media.MediaProcessor
+import dev.usbharu.hideout.core.external.mediastore.MediaStore
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Qualifier
+import org.springframework.stereotype.Service
+import dev.usbharu.hideout.core.domain.model.media.Media as MediaModel
+
+@Service
+class UploadMediaApplicationService(
+    @Qualifier("delegate") private val mediaProcessor: MediaProcessor,
+    private val mediaStore: MediaStore,
+    private val mediaRepository: MediaRepository,
+    private val idGenerateService: IdGenerateService,
+    transaction: Transaction
+) : LocalUserAbstractApplicationService<UploadMedia, Media>(
+    transaction,
+    logger
+) {
+    override suspend fun internalExecute(command: UploadMedia, principal: FromApi): Media {
+        val process = mediaProcessor.process(command.path, command.name, null)
+        val id = idGenerateService.generateId()
+        val thumbnailUri = if (process.thumbnailPath != null) {
+            mediaStore.upload(process.thumbnailPath, "thumbnail-$id.${process.mimeType.subtype}")
+        } else {
+            null
+        }
+        val uri = mediaStore.upload(process.path, "$id.${process.mimeType.subtype}")
+
+        val media = MediaModel(
+            id = MediaId(id),
+            name = MediaName(command.name),
+            url = uri,
+            remoteUrl = command.remoteUri,
+            thumbnailUrl = thumbnailUri,
+            type = process.fileType,
+            mimeType = process.mimeType,
+            blurHash = process.blurHash?.let { MediaBlurHash(it) },
+            description = command.description?.let { MediaDescription(it) }
+        )
+
+        mediaRepository.save(media)
+
+        return Media.of(media)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UploadMediaApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPost.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPost.kt
@ -0,0 +1,3 @@
+package dev.usbharu.hideout.core.application.post
+
+data class DeleteLocalPost(val postId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt
@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.post.PostId
+import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class DeleteLocalPostApplicationService(
+    private val postRepository: PostRepository,
+    private val actorRepository: ActorRepository, transaction: Transaction,
+) : LocalUserAbstractApplicationService<DeleteLocalPost, Unit>(transaction, logger) {
+
+    override suspend fun internalExecute(command: DeleteLocalPost, principal: FromApi) {
+        val findById = postRepository.findById(PostId(command.postId))!!
+        if (findById.actorId != principal.actorId) {
+            throw PermissionDeniedException()
+        }
+        val actor = actorRepository.findById(principal.actorId)!!
+        findById.delete(actor)
+        postRepository.save(findById)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(DeleteLocalPostApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPost.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPost.kt
@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+data class GetPost(
+    val postId: Long,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostApplicationService.kt
@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.post.PostId
+import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.service.post.IPostReadAccessControl
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class GetPostApplicationService(
+    private val postRepository: PostRepository,
+    private val iPostReadAccessControl: IPostReadAccessControl,
+    transaction: Transaction
+) :
+    AbstractApplicationService<GetPost, Post>(transaction, logger) {
+
+    override suspend fun internalExecute(command: GetPost, principal: Principal): Post {
+        val post = postRepository.findById(PostId(command.postId)) ?: throw IllegalArgumentException("Post not found")
+        if (iPostReadAccessControl.isAllow(post, principal).not()) {
+            throw PermissionDeniedException()
+        }
+        return Post.of(post)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(GetPostApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/Post.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/Post.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.domain.model.post.Post
+import dev.usbharu.hideout.core.domain.model.post.Visibility
+import java.net.URI
+import java.time.Instant
+
+data class Post(
+    val id: Long,
+    val actorId: Long,
+    val overview: String?,
+    val text: String,
+    val content: String,
+    val createdAt: Instant,
+    val visibility: Visibility,
+    val url: URI,
+    val repostId: Long?,
+    val replyId: Long?,
+    val sensitive: Boolean,
+    val mediaIds: List<Long>,
+    val moveTo: Long?,
+) {
+    companion object {
+        fun of(post: Post): dev.usbharu.hideout.core.application.post.Post {
+            return Post(
+                id = post.id.id,
+                actorId = post.actorId.id,
+                overview = post.overview?.overview,
+                text = post.text,
+                content = post.content.content,
+                createdAt = post.createdAt,
+                visibility = post.visibility,
+                url = post.url,
+                repostId = post.repostId?.id,
+                replyId = post.replyId?.id,
+                sensitive = post.sensitive,
+                mediaIds = post.mediaIds.map { it.id },
+                moveTo = post.moveTo?.id
+            )
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPost.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPost.kt
@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.domain.model.post.Visibility
+
+data class RegisterLocalPost(
+    val content: String,
+    val overview: String?,
+    val visibility: Visibility,
+    val repostId: Long?,
+    val replyId: Long?,
+    val sensitive: Boolean,
+    val mediaIds: List<Long>,
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt
@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.media.MediaId
+import dev.usbharu.hideout.core.domain.model.post.PostId
+import dev.usbharu.hideout.core.domain.model.post.PostOverview
+import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.infrastructure.factory.PostFactoryImpl
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class RegisterLocalPostApplicationService(
+    private val postFactory: PostFactoryImpl,
+    private val actorRepository: ActorRepository,
+    private val postRepository: PostRepository,
+    transaction: Transaction,
+) : LocalUserAbstractApplicationService<RegisterLocalPost, Long>(transaction, Companion.logger) {
+
+    override suspend fun internalExecute(command: RegisterLocalPost, principal: FromApi): Long {
+        val actorId = principal.actorId
+
+        val actor = actorRepository.findById(actorId) ?: throw InternalServerException("Actor $actorId not found.")
+
+        val post = postFactory.createLocal(
+            actor = actor,
+            actorName = actor.name,
+            overview = command.overview?.let { PostOverview(it) },
+            content = command.content,
+            visibility = command.visibility,
+            repostId = command.repostId?.let { PostId(it) },
+            replyId = command.replyId?.let { PostId(it) },
+            sensitive = command.sensitive,
+            mediaIds = command.mediaIds.map { MediaId(it) },
+        )
+
+        postRepository.save(post)
+
+        return post.id.id
+    }
+
+    companion object {
+        val logger: Logger = LoggerFactory.getLogger(RegisterLocalPostApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNote.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNote.kt
@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+data class UpdateLocalNote(
+    val postId: Long,
+    val overview: String?,
+    val content: String,
+    val sensitive: Boolean,
+    val mediaIds: List<Long>
+)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt
@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.media.MediaId
+import dev.usbharu.hideout.core.domain.model.post.PostId
+import dev.usbharu.hideout.core.domain.model.post.PostOverview
+import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import dev.usbharu.hideout.core.infrastructure.factory.PostContentFactoryImpl
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UpdateLocalNoteApplicationService(
+    transaction: Transaction,
+    private val postRepository: PostRepository,
+    private val postContentFactoryImpl: PostContentFactoryImpl,
+    private val userDetailRepository: UserDetailRepository,
+    private val actorRepository: ActorRepository,
+) : LocalUserAbstractApplicationService<UpdateLocalNote, Unit>(transaction, logger) {
+
+    override suspend fun internalExecute(command: UpdateLocalNote, principal: FromApi) {
+        val post = postRepository.findById(PostId(command.postId))
+            ?: throw IllegalArgumentException("Post ${command.postId} not found.")
+        if (post.actorId != principal.actorId) {
+            throw PermissionDeniedException()
+        }
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)
+            ?: throw InternalServerException("User detail ${principal.userDetailId} not found.")
+        val actor = actorRepository.findById(userDetail.actorId)
+            ?: throw InternalServerException("Actor ${principal.actorId} not found.")
+
+        post.setContent(postContentFactoryImpl.create(command.content), actor)
+        post.setOverview(command.overview?.let { PostOverview(it) }, actor)
+        post.addMediaIds(command.mediaIds.map { MediaId(it) }, actor)
+        post.setSensitive(command.sensitive, actor)
+
+        postRepository.save(post)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UpdateLocalNoteApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/AcceptFollowRequest.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/AcceptFollowRequest.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.acceptfollowrequest
+
+data class AcceptFollowRequest(val sourceActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt
@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.acceptfollowrequest
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserAcceptFollowRequestApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+) :
+    LocalUserAbstractApplicationService<AcceptFollowRequest, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: AcceptFollowRequest, principal: FromApi) {
+
+        val actor = actorRepository.findById(principal.actorId)
+            ?: throw InternalServerException("Actor ${principal.actorId} not found")
+
+        val targetId = ActorId(command.sourceActorId)
+
+        val relationship = relationshipRepository.findByActorIdAndTargetId(targetId, actor.id)
+            ?: throw InternalServerException("Follow request not found")
+
+        relationship.acceptFollowRequest()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/Block.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/Block.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.block
+
+data class Block(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt
@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.block
+
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import dev.usbharu.hideout.core.domain.service.relationship.RelationshipDomainService
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserBlockApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+    private val relationshipDomainService: RelationshipDomainService,
+) :
+    LocalUserAbstractApplicationService<Block, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: Block, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        val inverseRelationship =
+            relationshipRepository.findByActorIdAndTargetId(targetId, actor.id) ?: Relationship.default(
+                targetId,
+                actor.id
+            )
+
+        relationshipDomainService.block(relationship, inverseRelationship)
+
+        relationshipRepository.save(relationship)
+        relationshipRepository.save(inverseRelationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/FollowRequest.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/FollowRequest.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.followrequest
+
+data class FollowRequest(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt
@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.followrequest
+
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserFollowRequestApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) : LocalUserAbstractApplicationService<FollowRequest, Unit>(
+    transaction,
+    logger
+) {
+
+    override suspend fun internalExecute(command: FollowRequest, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        relationship.followRequest()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserFollowRequestApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationship.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationship.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.get
+
+data class GetRelationship(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt
@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.get
+
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.actorinstancerelationship.ActorInstanceRelationship
+import dev.usbharu.hideout.core.domain.model.actorinstancerelationship.ActorInstanceRelationshipRepository
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class GetRelationshipApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+    private val actorInstanceRelationshipRepository: ActorInstanceRelationshipRepository,
+    transaction: Transaction,
+) :
+    LocalUserAbstractApplicationService<GetRelationship, Relationship>(
+        transaction,
+        logger
+    ) {
+    override suspend fun internalExecute(command: GetRelationship, principal: FromApi): Relationship {
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+        val targetId = ActorId(command.targetActorId)
+        val target = actorRepository.findById(targetId)!!
+        val relationship = (
+            relationshipRepository.findByActorIdAndTargetId(actor.id, targetId)
+                ?: dev.usbharu.hideout.core.domain.model.relationship.Relationship.default(actor.id, targetId)
+            )
+
+        val relationship1 = (
+            relationshipRepository.findByActorIdAndTargetId(targetId, actor.id)
+                ?: dev.usbharu.hideout.core.domain.model.relationship.Relationship.default(targetId, actor.id)
+            )
+
+        val actorInstanceRelationship =
+            actorInstanceRelationshipRepository.findByActorIdAndInstanceId(actor.id, target.instance)
+                ?: ActorInstanceRelationship.default(
+                    actor.id,
+                    target.instance
+                )
+
+        return Relationship.of(relationship, relationship1, actorInstanceRelationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(GetRelationshipApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/Relationship.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/Relationship.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.get
+
+import dev.usbharu.hideout.core.domain.model.actorinstancerelationship.ActorInstanceRelationship
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+
+data class Relationship(
+    val actorId: Long,
+    val targetId: Long,
+    val following: Boolean,
+    val followedBy: Boolean,
+    val blocking: Boolean,
+    val blockedBy: Boolean,
+    val muting: Boolean,
+    val followRequesting: Boolean,
+    val followRequestedBy: Boolean,
+    val domainBlocking: Boolean,
+    val domainMuting: Boolean,
+    val domainDoNotSendPrivate: Boolean,
+) {
+    companion object {
+        fun of(
+            relationship: Relationship,
+            relationship2: Relationship,
+            actorInstanceRelationship: ActorInstanceRelationship,
+        ): dev.usbharu.hideout.core.application.relationship.get.Relationship {
+            return Relationship(
+                actorId = relationship.actorId.id,
+                targetId = relationship.targetActorId.id,
+                following = relationship.following,
+                followedBy = relationship2.following,
+                blocking = relationship.blocking,
+                blockedBy = relationship2.blocking,
+                muting = relationship.muting,
+                followRequesting = relationship.followRequesting,
+                followRequestedBy = relationship2.followRequesting,
+                domainBlocking = actorInstanceRelationship.blocking,
+                domainMuting = actorInstanceRelationship.muting,
+                domainDoNotSendPrivate = actorInstanceRelationship.doNotSendPrivate
+            )
+        }
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/Mute.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/Mute.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.mute
+
+data class Mute(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.mute
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserMuteApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<Mute, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: Mute, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        relationship.mute()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/RejectFollowRequest.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/RejectFollowRequest.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.rejectfollowrequest
+
+data class RejectFollowRequest(val sourceActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt
@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.rejectfollowrequest
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserRejectFollowRequestApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<RejectFollowRequest, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: RejectFollowRequest, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.sourceActorId)
+
+        val relationship = relationshipRepository.findByActorIdAndTargetId(targetId, actor.id)
+            ?: throw Exception("Follow request not found")
+
+        relationship.rejectFollowRequest()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/RemoveFromFollowers.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/RemoveFromFollowers.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.removefromfollowers
+
+data class RemoveFromFollowers(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.removefromfollowers
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserRemoveFromFollowersApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<RemoveFromFollowers, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: RemoveFromFollowers, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(targetId, actor.id) ?: Relationship.default(
+            targetId,
+            actor.id
+        )
+
+        relationship.unfollow()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/Unblock.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/Unblock.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unblock
+
+data class Unblock(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unblock
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserUnblockApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<Unblock, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: Unblock, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        relationship.unblock()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/Unfollow.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/Unfollow.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unfollow
+
+data class Unfollow(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unfollow
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserUnfollowApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<Unfollow, Unit>(transaction, logger) {
+    override suspend fun internalExecute(command: Unfollow, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        relationship.unfollow()
+
+        relationshipRepository.save(relationship)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/Unmute.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/Unmute.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unmute
+
+data class Unmute(val targetActorId: Long)
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.relationship.unmute
+
+import dev.usbharu.hideout.core.application.relationship.block.UserBlockApplicationService
+import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.ActorId
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+import dev.usbharu.hideout.core.domain.model.relationship.Relationship
+import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class UserUnmuteApplicationService(
+    private val relationshipRepository: RelationshipRepository,
+    transaction: Transaction,
+    private val actorRepository: ActorRepository,
+    private val userDetailRepository: UserDetailRepository,
+) :
+    LocalUserAbstractApplicationService<Unmute, Unit>(transaction, logger) {
+    companion object {
+        private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
+    }
+
+    override suspend fun internalExecute(command: Unmute, principal: FromApi) {
+
+        val userDetail = userDetailRepository.findById(principal.userDetailId)!!
+        val actor = actorRepository.findById(userDetail.actorId)!!
+
+        val targetId = ActorId(command.targetActorId)
+        val relationship = relationshipRepository.findByActorIdAndTargetId(actor.id, targetId) ?: Relationship.default(
+            actor.id,
+            targetId
+        )
+
+        relationship.unmute()
+
+        relationshipRepository.save(relationship)
+    }
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/AbstractApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/AbstractApplicationService.kt
@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.shared
+
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import kotlinx.coroutines.CancellationException
+import org.slf4j.Logger
+
+abstract class AbstractApplicationService<T : Any, R>(
+    protected val transaction: Transaction,
+    protected val logger: Logger,
+) : ApplicationService<T, R> {
+    override suspend fun execute(command: T, principal: Principal): R {
+        return try {
+            logger.debug("START {}", command::class.simpleName)
+            val response = transaction.transaction<R> {
+                internalExecute(command, principal)
+            }
+            logger.info("SUCCESS ${command::class.simpleName}")
+            response
+        } catch (e: CancellationException) {
+            logger.debug("Coroutine canceled", e)
+            throw e
+        } catch (e: Exception) {
+            logger.warn("Command execution error", e)
+            throw e
+        }
+    }
+
+    protected abstract suspend fun internalExecute(command: T, principal: Principal): R
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/ApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/ApplicationService.kt
@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.shared
+
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+
+interface ApplicationService<T : Any, R> {
+    suspend fun execute(command: T, principal: Principal): R
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt
@ -0,0 +1,15 @@
+package dev.usbharu.hideout.core.application.shared
+
+import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import org.slf4j.Logger
+
+abstract class LocalUserAbstractApplicationService<T : Any, R>(transaction: Transaction, logger: Logger) :
+    AbstractApplicationService<T, R>(transaction, logger) {
+    override suspend fun internalExecute(command: T, principal: Principal): R {
+        require(principal is FromApi)
+        return internalExecute(command, principal)
+    }
+
+    protected abstract suspend fun internalExecute(command: T, principal: FromApi): R
+}
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/Transaction.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/Transaction.kt
@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2024 usbharu
+ *
+ * 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
+ *
+ *      http://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.
+ */
+
+package dev.usbharu.hideout.core.application.shared
+
+import org.springframework.stereotype.Service
+
+@Service
+interface Transaction {
+    suspend fun <T> transaction(block: suspend () -> T): T
+    suspend fun <T> transaction(transactionLevel: Int, block: suspend () -> T): T
+}
--- a/Show More
+++ b/Show More