Initial commit: LCK Control Android app

Multi-module Android app (app/shared/sdk) with backend-driven auth, Quest Platform SDK login, YouTube/Twitch OAuth linking, stream management via AIDL service. Compose UI with Hilt DI.
2026-02-24 12:03:43 +01:00
commit 82aa207f9a
101 changed files with 4723 additions and 0 deletions
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -0,0 +1,14 @@
+{
+  "permissions": {
+    "allow": [
+      "WebSearch",
+      "WebFetch(domain:developers.google.com)",
+      "WebFetch(domain:dev.twitch.tv)",
+      "WebFetch(domain:dev.epicgames.com)",
+      "WebFetch(domain:mvnrepository.com)",
+      "WebFetch(domain:developers.meta.com)",
+      "WebFetch(domain:central.sonatype.com)",
+      "Bash(javap:*)"
+    ]
+  }
+}
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,20 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+**/build/
+/captures
+.externalNativeBuild
+.cxx
+.kotlin
+local.properties
+
+# Platform tools
+ovr-platform-util.exe
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
--- a/.idea/.name
+++ b/.idea/.name
@@ -0,0 +1 @@
+LCK Control
--- a/.idea/AndroidProjectSystem.xml
+++ b/.idea/AndroidProjectSystem.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AndroidProjectSystem">
+    <option name="providerId" value="com.android.tools.idea.GradleProjectSystem" />
+  </component>
+</project>
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="21" />
+  </component>
+</project>
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="CHOOSE_PER_TEST" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+            <option value="$PROJECT_DIR$/sdk" />
+            <option value="$PROJECT_DIR$/shared" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,61 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="ComposePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDeviceShouldUseNewSpec" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewParameterProviderOnFirstParameter" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -0,0 +1,9 @@
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.intellij.execution.junit.AbstractAllInDirectoryConfigurationProducer" />
+        <option value="com.intellij.execution.junit.AllInPackageConfigurationProducer" />
+        <option value="com.intellij.execution.junit.PatternConfigurationProducer" />
+        <option value="com.intellij.execution.junit.TestInClassConfigurationProducer" />
+        <option value="com.intellij.execution.junit.UniqueIdConfigurationProducer" />
+        <option value="com.intellij.execution.junit.testDiscovery.JUnitTestDiscoveryConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinJUnitRunConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinPatternConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -0,0 +1,158 @@
+import java.io.ByteArrayOutputStream
+
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.compose)
+    alias(libs.plugins.kotlin.parcelize)
+    alias(libs.plugins.hilt)
+    alias(libs.plugins.ksp)
+}
+
+// ── Git-based versioning ────────────────────────────────────
+fun gitVersionName(): String = runGit("describe", "--tags", "--abbrev=0")
+    .removePrefix("v")
+    .ifEmpty { "0.1.0" }
+
+fun gitCommitCount(): Int = runGit("rev-list", "--count", "HEAD")
+    .toIntOrNull() ?: 1
+
+fun gitShortHash(): String = runGit("rev-parse", "--short", "HEAD")
+    .ifEmpty { "unknown" }
+
+fun gitDisplayVersion(): String {
+    val base = gitVersionName()
+    val count = gitCommitCount()
+    val hash = gitShortHash()
+    return "$base+$count.$hash"
+}
+
+fun runGit(vararg args: String): String = try {
+    val out = ByteArrayOutputStream()
+    project.exec {
+        commandLine("git", *args)
+        standardOutput = out
+        isIgnoreExitValue = true
+    }
+    out.toString().trim()
+} catch (_: Exception) { "" }
+
+// ─────────────────────────────────────────────────────────────
+
+android {
+    namespace = "com.omixlab.lckcontrol"
+    compileSdk {
+        version = release(36) {
+            minorApiLevel = 1
+        }
+    }
+
+    signingConfigs {
+        create("release") {
+            storeFile = rootProject.file("lck-control.keystore")
+            storePassword = "4gx%wx4NOhS6"
+            keyAlias = "lck-control"
+            keyPassword = "4gx%wx4NOhS6"
+        }
+    }
+
+    defaultConfig {
+        applicationId = "com.omixlab.lckcontrol"
+        minSdk = 32
+        targetSdk = 34
+        versionCode = gitCommitCount()
+        versionName = gitVersionName()
+
+        buildConfigField("String", "DISPLAY_VERSION", "\"${gitDisplayVersion()}\"")
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        debug {
+            signingConfig = signingConfigs.getByName("release")
+        }
+        release {
+            signingConfig = signingConfigs.getByName("release")
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    buildFeatures {
+        compose = true
+        buildConfig = true
+    }
+    packaging {
+        resources {
+            excludes += setOf(
+                "META-INF/DEPENDENCIES",
+                "META-INF/LICENSE",
+                "META-INF/LICENSE.txt",
+                "META-INF/NOTICE",
+                "META-INF/NOTICE.txt",
+            )
+        }
+    }
+}
+
+dependencies {
+    implementation(project(":shared"))
+
+    // Core
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    implementation(libs.androidx.lifecycle.runtime.compose)
+    implementation(libs.kotlinx.coroutines.android)
+
+    // Compose
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.compose.ui)
+    implementation(libs.androidx.compose.ui.graphics)
+    implementation(libs.androidx.compose.ui.tooling.preview)
+    implementation(libs.androidx.compose.material3)
+    implementation(libs.androidx.compose.material.icons.extended)
+    implementation(libs.androidx.navigation.compose)
+
+    // Hilt
+    implementation(libs.hilt.android)
+    ksp(libs.hilt.compiler)
+    implementation(libs.androidx.hilt.navigation.compose)
+
+    // Room
+    implementation(libs.room.runtime)
+    implementation(libs.room.ktx)
+    ksp(libs.room.compiler)
+
+    // Networking
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.moshi)
+    implementation(libs.moshi.kotlin)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging)
+
+    // Security
+    implementation(libs.androidx.security.crypto)
+
+    // Meta Quest Platform SDK
+    implementation("com.meta.horizon.platform.ovr:android-platform-sdk:77.0.1")
+
+    // Browser (Custom Tabs for OAuth flows)
+    implementation(libs.androidx.browser)
+
+    // Test
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.compose.ui.test.junit4)
+    debugImplementation(libs.androidx.compose.ui.tooling)
+    debugImplementation(libs.androidx.compose.ui.test.manifest)
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/omixlab/lckcontrol/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/omixlab/lckcontrol/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.omixlab.lckcontrol
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.omixlab.lckcontrol", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
+    <permission
+        android:name="com.omixlab.lckcontrol.permission.USE_LCK_CONTROL"
+        android:label="Access LCK Control Service"
+        android:description="@string/permission_use_lck_control_desc"
+        android:protectionLevel="dangerous" />
+
+    <application
+        android:name=".LckControlApp"
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.LCKControl"
+        android:networkSecurityConfig="@xml/network_security_config">
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.LCKControl">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <!-- YouTube OAuth redirect handler -->
+        <activity
+            android:name=".auth.YouTubeAuthRedirectActivity"
+            android:exported="true"
+            android:launchMode="singleTask">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data
+                    android:scheme="com.omixlab.lckcontrol"
+                    android:host="youtube"
+                    android:pathPrefix="/callback" />
+            </intent-filter>
+        </activity>
+
+        <!-- Twitch OAuth redirect handler -->
+        <activity
+            android:name=".auth.TwitchAuthRedirectActivity"
+            android:exported="true"
+            android:launchMode="singleTask">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data
+                    android:scheme="com.omixlab.lckcontrol"
+                    android:host="twitch"
+                    android:pathPrefix="/callback" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name=".service.LckControlService"
+            android:exported="true"
+            android:permission="com.omixlab.lckcontrol.permission.USE_LCK_CONTROL"
+            android:foregroundServiceType="connectedDevice">
+            <intent-filter>
+                <action android:name="com.omixlab.lckcontrol.BIND" />
+            </intent-filter>
+        </service>
+
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/omixlab/lckcontrol/LckControlApp.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/LckControlApp.kt
@@ -0,0 +1,7 @@
+package com.omixlab.lckcontrol
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class LckControlApp : Application()
--- a/app/src/main/java/com/omixlab/lckcontrol/MainActivity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/MainActivity.kt
@@ -0,0 +1,27 @@
+package com.omixlab.lckcontrol
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import com.omixlab.lckcontrol.data.local.TokenStore
+import com.omixlab.lckcontrol.ui.navigation.AppNavigation
+import com.omixlab.lckcontrol.ui.theme.LCKControlTheme
+import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+
+    @Inject lateinit var tokenStore: TokenStore
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            LCKControlTheme {
+                AppNavigation(tokenStore)
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/auth/TwitchAuthRedirectActivity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/auth/TwitchAuthRedirectActivity.kt
@@ -0,0 +1,41 @@
+package com.omixlab.lckcontrol.auth
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import com.omixlab.lckcontrol.MainActivity
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.omixlab.lckcontrol.data.remote.ProviderCallbackRequest
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class TwitchAuthRedirectActivity : ComponentActivity() {
+
+    @Inject lateinit var apiService: LckApiService
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        val code = intent?.data?.getQueryParameter("code")
+        val state = intent?.data?.getQueryParameter("state")
+        if (code != null && state != null) {
+            CoroutineScope(Dispatchers.IO).launch {
+                try {
+                    apiService.twitchCallback(ProviderCallbackRequest(code = code, state = state))
+                } catch (e: Exception) {
+                    // Error will be surfaced when accounts screen refreshes
+                }
+            }
+        }
+
+        val mainIntent = Intent(this, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+        }
+        startActivity(mainIntent)
+        finish()
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/auth/YouTubeAuthRedirectActivity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/auth/YouTubeAuthRedirectActivity.kt
@@ -0,0 +1,41 @@
+package com.omixlab.lckcontrol.auth
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import com.omixlab.lckcontrol.MainActivity
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.omixlab.lckcontrol.data.remote.ProviderCallbackRequest
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class YouTubeAuthRedirectActivity : ComponentActivity() {
+
+    @Inject lateinit var apiService: LckApiService
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        val code = intent?.data?.getQueryParameter("code")
+        val state = intent?.data?.getQueryParameter("state")
+        if (code != null && state != null) {
+            CoroutineScope(Dispatchers.IO).launch {
+                try {
+                    apiService.youtubeCallback(ProviderCallbackRequest(code = code, state = state))
+                } catch (e: Exception) {
+                    // Error will be surfaced when accounts screen refreshes
+                }
+            }
+        }
+
+        val mainIntent = Intent(this, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+        }
+        startActivity(mainIntent)
+        finish()
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/LckDatabase.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/LckDatabase.kt
@@ -0,0 +1,73 @@
+package com.omixlab.lckcontrol.data.local
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+import com.omixlab.lckcontrol.data.local.dao.LinkedAccountDao
+import com.omixlab.lckcontrol.data.local.dao.StreamPlanDao
+import com.omixlab.lckcontrol.data.local.entity.LinkedAccountEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamDestinationEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamPlanEntity
+
+@Database(
+    entities = [
+        LinkedAccountEntity::class,
+        StreamPlanEntity::class,
+        StreamDestinationEntity::class,
+    ],
+    version = 2,
+    exportSchema = false,
+)
+abstract class LckDatabase : RoomDatabase() {
+    abstract fun linkedAccountDao(): LinkedAccountDao
+    abstract fun streamPlanDao(): StreamPlanDao
+
+    companion object {
+        val MIGRATION_1_2 = object : Migration(1, 2) {
+            override fun migrate(db: SupportSQLiteDatabase) {
+                // 1. Remove token columns from linked_accounts
+                db.execSQL("""
+                    CREATE TABLE linked_accounts_new (
+                        serviceId TEXT NOT NULL PRIMARY KEY,
+                        displayName TEXT NOT NULL,
+                        accountId TEXT NOT NULL,
+                        avatarUrl TEXT
+                    )
+                """.trimIndent())
+                db.execSQL("""
+                    INSERT INTO linked_accounts_new (serviceId, displayName, accountId, avatarUrl)
+                    SELECT serviceId, displayName, accountId, avatarUrl FROM linked_accounts
+                """.trimIndent())
+                db.execSQL("DROP TABLE linked_accounts")
+                db.execSQL("ALTER TABLE linked_accounts_new RENAME TO linked_accounts")
+
+                // 2. Change stream_destinations.id from INTEGER to TEXT
+                db.execSQL("""
+                    CREATE TABLE stream_destinations_new (
+                        id TEXT NOT NULL PRIMARY KEY,
+                        planId TEXT NOT NULL,
+                        service TEXT NOT NULL,
+                        title TEXT NOT NULL,
+                        description TEXT NOT NULL DEFAULT '',
+                        privacyStatus TEXT NOT NULL DEFAULT 'public',
+                        gameId TEXT NOT NULL DEFAULT '',
+                        tags TEXT NOT NULL DEFAULT '',
+                        rtmpUrl TEXT NOT NULL DEFAULT '',
+                        streamKey TEXT NOT NULL DEFAULT '',
+                        broadcastId TEXT NOT NULL DEFAULT '',
+                        status TEXT NOT NULL DEFAULT 'PENDING',
+                        FOREIGN KEY (planId) REFERENCES stream_plans(planId) ON DELETE CASCADE
+                    )
+                """.trimIndent())
+                db.execSQL("CREATE INDEX index_stream_destinations_planId ON stream_destinations_new(planId)")
+                db.execSQL("""
+                    INSERT INTO stream_destinations_new (id, planId, service, title, description, privacyStatus, gameId, tags, rtmpUrl, streamKey, broadcastId, status)
+                    SELECT CAST(id AS TEXT), planId, service, title, description, privacyStatus, gameId, tags, rtmpUrl, streamKey, broadcastId, status FROM stream_destinations
+                """.trimIndent())
+                db.execSQL("DROP TABLE stream_destinations")
+                db.execSQL("ALTER TABLE stream_destinations_new RENAME TO stream_destinations")
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/TokenStore.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/TokenStore.kt
@@ -0,0 +1,50 @@
+package com.omixlab.lckcontrol.data.local
+
+import android.content.Context
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKeys
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class TokenStore @Inject constructor(
+    @ApplicationContext context: Context,
+) {
+    private val masterKey = MasterKeys.getOrCreate(MasterKeys.AES256_GCM_SPEC)
+
+    private val prefs = EncryptedSharedPreferences.create(
+        "lck_control_tokens",
+        masterKey,
+        context,
+        EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+        EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM,
+    )
+
+    fun getJwt(): String? =
+        prefs.getString(KEY_JWT, null)
+
+    fun getRefreshToken(): String? =
+        prefs.getString(KEY_REFRESH_TOKEN, null)
+
+    fun saveSession(jwt: String, refreshToken: String) {
+        prefs.edit()
+            .putString(KEY_JWT, jwt)
+            .putString(KEY_REFRESH_TOKEN, refreshToken)
+            .apply()
+    }
+
+    fun clearSession() {
+        prefs.edit()
+            .remove(KEY_JWT)
+            .remove(KEY_REFRESH_TOKEN)
+            .apply()
+    }
+
+    fun isLoggedIn(): Boolean = getJwt() != null
+
+    companion object {
+        private const val KEY_JWT = "session_jwt"
+        private const val KEY_REFRESH_TOKEN = "session_refresh_token"
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/dao/LinkedAccountDao.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/dao/LinkedAccountDao.kt
@@ -0,0 +1,30 @@
+package com.omixlab.lckcontrol.data.local.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.omixlab.lckcontrol.data.local.entity.LinkedAccountEntity
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface LinkedAccountDao {
+    @Query("SELECT * FROM linked_accounts")
+    fun observeAll(): Flow<List<LinkedAccountEntity>>
+
+    @Query("SELECT * FROM linked_accounts")
+    suspend fun getAll(): List<LinkedAccountEntity>
+
+    @Query("SELECT * FROM linked_accounts WHERE serviceId = :serviceId")
+    suspend fun getByService(serviceId: String): LinkedAccountEntity?
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun upsert(account: LinkedAccountEntity)
+
+    @Delete
+    suspend fun delete(account: LinkedAccountEntity)
+
+    @Query("DELETE FROM linked_accounts WHERE serviceId = :serviceId")
+    suspend fun deleteByService(serviceId: String)
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/dao/StreamPlanDao.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/dao/StreamPlanDao.kt
@@ -0,0 +1,58 @@
+package com.omixlab.lckcontrol.data.local.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import com.omixlab.lckcontrol.data.local.entity.StreamDestinationEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamPlanEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamPlanWithDestinations
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface StreamPlanDao {
+    @Transaction
+    @Query("SELECT * FROM stream_plans ORDER BY createdAt DESC")
+    fun observeAll(): Flow<List<StreamPlanWithDestinations>>
+
+    @Transaction
+    @Query("SELECT * FROM stream_plans ORDER BY createdAt DESC")
+    suspend fun getAll(): List<StreamPlanWithDestinations>
+
+    @Transaction
+    @Query("SELECT * FROM stream_plans WHERE planId = :planId")
+    suspend fun getById(planId: String): StreamPlanWithDestinations?
+
+    @Transaction
+    @Query("SELECT * FROM stream_plans WHERE planId = :planId")
+    fun observeById(planId: String): Flow<StreamPlanWithDestinations?>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun upsertPlan(plan: StreamPlanEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun upsertDestination(destination: StreamDestinationEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun upsertDestinations(destinations: List<StreamDestinationEntity>)
+
+    @Query("DELETE FROM stream_destinations WHERE planId = :planId")
+    suspend fun deleteDestinations(planId: String)
+
+    @Query("DELETE FROM stream_plans WHERE planId = :planId")
+    suspend fun deletePlan(planId: String)
+
+    @Query("UPDATE stream_plans SET status = :status WHERE planId = :planId")
+    suspend fun updateStatus(planId: String, status: String)
+
+    @Query("UPDATE stream_destinations SET rtmpUrl = :rtmpUrl, streamKey = :streamKey, broadcastId = :broadcastId, status = :status WHERE id = :id")
+    suspend fun updateDestinationStream(id: String, rtmpUrl: String, streamKey: String, broadcastId: String, status: String)
+
+    @Transaction
+    suspend fun insertPlanWithDestinations(plan: StreamPlanEntity, destinations: List<StreamDestinationEntity>) {
+        upsertPlan(plan)
+        deleteDestinations(plan.planId)
+        upsertDestinations(destinations)
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/LinkedAccountEntity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/LinkedAccountEntity.kt
@@ -0,0 +1,12 @@
+package com.omixlab.lckcontrol.data.local.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "linked_accounts")
+data class LinkedAccountEntity(
+    @PrimaryKey val serviceId: String,
+    val displayName: String,
+    val accountId: String,
+    val avatarUrl: String? = null,
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamDestinationEntity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamDestinationEntity.kt
@@ -0,0 +1,34 @@
+package com.omixlab.lckcontrol.data.local.entity
+
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.Index
+import androidx.room.PrimaryKey
+import java.util.UUID
+
+@Entity(
+    tableName = "stream_destinations",
+    foreignKeys = [
+        ForeignKey(
+            entity = StreamPlanEntity::class,
+            parentColumns = ["planId"],
+            childColumns = ["planId"],
+            onDelete = ForeignKey.CASCADE,
+        )
+    ],
+    indices = [Index("planId")],
+)
+data class StreamDestinationEntity(
+    @PrimaryKey val id: String = UUID.randomUUID().toString(),
+    val planId: String,
+    val service: String,
+    val title: String,
+    val description: String = "",
+    val privacyStatus: String = "public",
+    val gameId: String = "",
+    val tags: String = "",
+    val rtmpUrl: String = "",
+    val streamKey: String = "",
+    val broadcastId: String = "",
+    val status: String = "PENDING",
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamPlanEntity.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamPlanEntity.kt
@@ -0,0 +1,12 @@
+package com.omixlab.lckcontrol.data.local.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "stream_plans")
+data class StreamPlanEntity(
+    @PrimaryKey val planId: String,
+    val name: String,
+    val status: String = "DRAFT",
+    val createdAt: Long = System.currentTimeMillis(),
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamPlanWithDestinations.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/local/entity/StreamPlanWithDestinations.kt
@@ -0,0 +1,13 @@
+package com.omixlab.lckcontrol.data.local.entity
+
+import androidx.room.Embedded
+import androidx.room.Relation
+
+data class StreamPlanWithDestinations(
+    @Embedded val plan: StreamPlanEntity,
+    @Relation(
+        parentColumn = "planId",
+        entityColumn = "planId",
+    )
+    val destinations: List<StreamDestinationEntity>,
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/data/remote/ApiModels.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/remote/ApiModels.kt
@@ -0,0 +1,128 @@
+package com.omixlab.lckcontrol.data.remote
+
+import com.squareup.moshi.JsonClass
+
+// ── Auth ─────────────────────────────────────────────────
+
+@JsonClass(generateAdapter = true)
+data class MetaCallbackRequest(
+    val userId: String,
+    val nonce: String,
+    val deviceInfo: String? = null,
+)
+
+@JsonClass(generateAdapter = true)
+data class RefreshRequest(
+    val refreshToken: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class AuthTokensResponse(
+    val accessToken: String,
+    val refreshToken: String,
+    val expiresIn: Int,
+)
+
+@JsonClass(generateAdapter = true)
+data class UserProfileResponse(
+    val id: String,
+    val displayName: String,
+    val email: String?,
+    val avatarUrl: String?,
+)
+
+// ── Providers ────────────────────────────────────────────
+
+@JsonClass(generateAdapter = true)
+data class AuthUrlResponse(
+    val url: String,
+    val state: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class ProviderCallbackRequest(
+    val code: String,
+    val state: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class LinkedAccountResponse(
+    val id: String,
+    val serviceId: String,
+    val displayName: String,
+    val accountId: String,
+    val avatarUrl: String?,
+)
+
+// ── Streams ──────────────────────────────────────────────
+
+@JsonClass(generateAdapter = true)
+data class CreateStreamPlanRequest(
+    val name: String,
+    val destinations: List<CreateDestinationRequest>,
+)
+
+@JsonClass(generateAdapter = true)
+data class CreateDestinationRequest(
+    val serviceId: String,
+    val title: String,
+    val description: String? = null,
+    val privacyStatus: String? = null,
+    val gameId: String? = null,
+    val tags: String? = null,
+)
+
+@JsonClass(generateAdapter = true)
+data class StreamPlanResponse(
+    val id: String,
+    val name: String,
+    val status: String,
+    val createdAt: String,
+    val updatedAt: String,
+    val destinations: List<StreamDestinationResponse>,
+)
+
+@JsonClass(generateAdapter = true)
+data class StreamDestinationResponse(
+    val id: String,
+    val serviceId: String,
+    val title: String,
+    val description: String,
+    val privacyStatus: String,
+    val gameId: String,
+    val tags: String,
+    val rtmpUrl: String,
+    val streamKey: String,
+    val broadcastId: String,
+    val status: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class PrepareResponse(
+    val planId: String,
+    val destinations: List<PreparedDestination>,
+)
+
+@JsonClass(generateAdapter = true)
+data class PreparedDestination(
+    val serviceId: String,
+    val rtmpUrl: String,
+    val streamKey: String,
+    val broadcastId: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class SuccessResponse(
+    val success: Boolean,
+)
+
+@JsonClass(generateAdapter = true)
+data class StatusResponse(
+    val success: Boolean,
+    val status: String,
+)
+
+@JsonClass(generateAdapter = true)
+data class ErrorResponse(
+    val error: String,
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/data/remote/AuthInterceptor.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/remote/AuthInterceptor.kt
@@ -0,0 +1,88 @@
+package com.omixlab.lckcontrol.data.remote
+
+import com.omixlab.lckcontrol.data.local.TokenStore
+import okhttp3.Interceptor
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.RequestBody.Companion.toRequestBody
+import okhttp3.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AuthInterceptor @Inject constructor(
+    private val tokenStore: TokenStore,
+) : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val original = chain.request()
+
+        // Don't add auth header to auth endpoints (login, refresh)
+        val path = original.url.encodedPath
+        if (path.contains("/auth/meta/callback") || path.contains("/auth/refresh")) {
+            return chain.proceed(original)
+        }
+
+        val jwt = tokenStore.getJwt()
+        val request = if (jwt != null) {
+            original.newBuilder()
+                .header("Authorization", "Bearer $jwt")
+                .build()
+        } else {
+            original
+        }
+
+        val response = chain.proceed(request)
+
+        // If 401 and we have a refresh token, try to refresh
+        if (response.code == 401) {
+            val refreshToken = tokenStore.getRefreshToken()
+            if (refreshToken != null) {
+                response.close()
+                val newTokens = refreshTokenSync(chain, refreshToken)
+                if (newTokens != null) {
+                    tokenStore.saveSession(newTokens.accessToken, newTokens.refreshToken)
+                    // Retry original request with new token
+                    val retryRequest = original.newBuilder()
+                        .header("Authorization", "Bearer ${newTokens.accessToken}")
+                        .build()
+                    return chain.proceed(retryRequest)
+                } else {
+                    // Refresh failed, clear session
+                    tokenStore.clearSession()
+                }
+            }
+        }
+
+        return response
+    }
+
+    private fun refreshTokenSync(chain: Interceptor.Chain, refreshToken: String): AuthTokensResponse? {
+        return try {
+            val baseUrl = chain.request().url.newBuilder()
+                .encodedPath("/auth/refresh")
+                .build()
+
+            val json = """{"refreshToken":"$refreshToken"}"""
+            val mediaType = "application/json".toMediaTypeOrNull()
+            val body = json.toRequestBody(mediaType)
+
+            val refreshRequest = okhttp3.Request.Builder()
+                .url(baseUrl)
+                .post(body)
+                .build()
+
+            val refreshResponse = chain.proceed(refreshRequest)
+            if (refreshResponse.isSuccessful) {
+                val responseBody = refreshResponse.body?.string() ?: return null
+                val moshi = com.squareup.moshi.Moshi.Builder().build()
+                val adapter = moshi.adapter(AuthTokensResponse::class.java)
+                adapter.fromJson(responseBody)
+            } else {
+                refreshResponse.close()
+                null
+            }
+        } catch (e: Exception) {
+            null
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/remote/LckApiService.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/remote/LckApiService.kt
@@ -0,0 +1,63 @@
+package com.omixlab.lckcontrol.data.remote
+
+import retrofit2.http.*
+
+interface LckApiService {
+
+    // ── Auth ─────────────────────────────────────────────
+
+    @POST("auth/meta/callback")
+    suspend fun metaCallback(@Body body: MetaCallbackRequest): AuthTokensResponse
+
+    @POST("auth/refresh")
+    suspend fun refreshSession(@Body body: RefreshRequest): AuthTokensResponse
+
+    @GET("auth/me")
+    suspend fun getMe(): UserProfileResponse
+
+    @POST("auth/logout")
+    suspend fun logout(): SuccessResponse
+
+    // ── Providers ────────────────────────────────────────
+
+    @GET("providers/accounts")
+    suspend fun getLinkedAccounts(): List<LinkedAccountResponse>
+
+    @GET("providers/youtube/auth-url")
+    suspend fun getYouTubeAuthUrl(): AuthUrlResponse
+
+    @POST("providers/youtube/callback")
+    suspend fun youtubeCallback(@Body body: ProviderCallbackRequest): LinkedAccountResponse
+
+    @GET("providers/twitch/auth-url")
+    suspend fun getTwitchAuthUrl(): AuthUrlResponse
+
+    @POST("providers/twitch/callback")
+    suspend fun twitchCallback(@Body body: ProviderCallbackRequest): LinkedAccountResponse
+
+    @DELETE("providers/{serviceId}")
+    suspend fun unlinkAccount(@Path("serviceId") serviceId: String): SuccessResponse
+
+    // ── Streams ──────────────────────────────────────────
+
+    @GET("streams/plans")
+    suspend fun getStreamPlans(): List<StreamPlanResponse>
+
+    @POST("streams/plans")
+    suspend fun createStreamPlan(@Body body: CreateStreamPlanRequest): StreamPlanResponse
+
+    @GET("streams/plans/{id}")
+    suspend fun getStreamPlan(@Path("id") id: String): StreamPlanResponse
+
+    @DELETE("streams/plans/{id}")
+    suspend fun deleteStreamPlan(@Path("id") id: String): SuccessResponse
+
+    @POST("streams/plans/{id}/prepare")
+    suspend fun prepareStreamPlan(@Path("id") id: String): PrepareResponse
+
+    @POST("streams/plans/{id}/start")
+    suspend fun startStreamPlan(@Path("id") id: String): StatusResponse
+
+    @POST("streams/plans/{id}/end")
+    suspend fun endStreamPlan(@Path("id") id: String): StatusResponse
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/repository/AccountRepository.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/repository/AccountRepository.kt
@@ -0,0 +1,88 @@
+package com.omixlab.lckcontrol.data.repository
+
+import com.omixlab.lckcontrol.data.local.dao.LinkedAccountDao
+import com.omixlab.lckcontrol.data.local.entity.LinkedAccountEntity
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.omixlab.lckcontrol.data.remote.ProviderCallbackRequest
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AccountRepository @Inject constructor(
+    private val accountDao: LinkedAccountDao,
+    private val apiService: LckApiService,
+) {
+    fun observeAccounts(): Flow<List<LinkedAccount>> =
+        accountDao.observeAll().map { entities ->
+            entities.map { it.toLinkedAccount() }
+        }
+
+    suspend fun getAccounts(): List<LinkedAccount> =
+        accountDao.getAll().map { it.toLinkedAccount() }
+
+    /** Fetch accounts from backend and sync to Room cache */
+    suspend fun syncAccounts() {
+        val remote = apiService.getLinkedAccounts()
+        // Clear local and replace with remote data
+        val entities = remote.map { account ->
+            LinkedAccountEntity(
+                serviceId = account.serviceId,
+                displayName = account.displayName,
+                accountId = account.accountId,
+                avatarUrl = account.avatarUrl,
+            )
+        }
+        // Get current local accounts to detect removals
+        val local = accountDao.getAll()
+        val remoteServiceIds = entities.map { it.serviceId }.toSet()
+        for (localAccount in local) {
+            if (localAccount.serviceId !in remoteServiceIds) {
+                accountDao.deleteByService(localAccount.serviceId)
+            }
+        }
+        for (entity in entities) {
+            accountDao.upsert(entity)
+        }
+    }
+
+    /** Get YouTube OAuth URL from backend (for Custom Tabs) */
+    suspend fun getYouTubeAuthUrl(): String {
+        val response = apiService.getYouTubeAuthUrl()
+        return response.url
+    }
+
+    /** Get Twitch OAuth URL from backend (for Custom Tabs) */
+    suspend fun getTwitchAuthUrl(): String {
+        val response = apiService.getTwitchAuthUrl()
+        return response.url
+    }
+
+    /** Send YouTube callback code to backend */
+    suspend fun handleYouTubeCallback(code: String, state: String) {
+        apiService.youtubeCallback(ProviderCallbackRequest(code, state))
+        syncAccounts()
+    }
+
+    /** Send Twitch callback code to backend */
+    suspend fun handleTwitchCallback(code: String, state: String) {
+        apiService.twitchCallback(ProviderCallbackRequest(code, state))
+        syncAccounts()
+    }
+
+    /** Unlink account via backend and update local cache */
+    suspend fun unlinkAccount(serviceId: String) {
+        apiService.unlinkAccount(serviceId)
+        accountDao.deleteByService(serviceId)
+    }
+
+    private fun LinkedAccountEntity.toLinkedAccount() = LinkedAccount(
+        serviceId = serviceId,
+        displayName = displayName,
+        accountId = accountId,
+        avatarUrl = avatarUrl,
+        isAuthenticated = true, // Backend manages auth state
+    )
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/data/repository/StreamPlanRepository.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/data/repository/StreamPlanRepository.kt
@@ -0,0 +1,143 @@
+package com.omixlab.lckcontrol.data.repository
+
+import com.omixlab.lckcontrol.data.local.dao.StreamPlanDao
+import com.omixlab.lckcontrol.data.local.entity.StreamDestinationEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamPlanEntity
+import com.omixlab.lckcontrol.data.local.entity.StreamPlanWithDestinations
+import com.omixlab.lckcontrol.data.remote.CreateDestinationRequest
+import com.omixlab.lckcontrol.data.remote.CreateStreamPlanRequest
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.omixlab.lckcontrol.data.remote.PrepareResponse
+import com.omixlab.lckcontrol.data.remote.StreamPlanResponse
+import com.omixlab.lckcontrol.shared.StreamDestination
+import com.omixlab.lckcontrol.shared.StreamPlan
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class StreamPlanRepository @Inject constructor(
+    private val planDao: StreamPlanDao,
+    private val apiService: LckApiService,
+) {
+    fun observePlans(): Flow<List<StreamPlan>> =
+        planDao.observeAll().map { list -> list.map { it.toStreamPlan() } }
+
+    fun observePlan(planId: String): Flow<StreamPlan?> =
+        planDao.observeById(planId).map { it?.toStreamPlan() }
+
+    suspend fun getPlans(): List<StreamPlan> =
+        planDao.getAll().map { it.toStreamPlan() }
+
+    suspend fun getPlan(planId: String): StreamPlan? =
+        planDao.getById(planId)?.toStreamPlan()
+
+    /** Sync plans from backend to local Room cache */
+    suspend fun syncPlans() {
+        val remotePlans = apiService.getStreamPlans()
+        for (remote in remotePlans) {
+            cacheRemotePlan(remote)
+        }
+    }
+
+    /** Create plan via backend and cache locally */
+    suspend fun createPlan(name: String, destinations: List<StreamDestination>): StreamPlan {
+        val request = CreateStreamPlanRequest(
+            name = name,
+            destinations = destinations.map { dest ->
+                CreateDestinationRequest(
+                    serviceId = dest.service,
+                    title = dest.title,
+                    description = dest.description,
+                    privacyStatus = dest.privacyStatus,
+                    gameId = dest.gameId,
+                    tags = dest.tags.joinToString(","),
+                )
+            },
+        )
+        val response = apiService.createStreamPlan(request)
+        cacheRemotePlan(response)
+        return planDao.getById(response.id)!!.toStreamPlan()
+    }
+
+    /** Prepare plan via backend — returns RTMP info */
+    suspend fun preparePlan(planId: String): PrepareResponse {
+        val response = apiService.prepareStreamPlan(planId)
+        // Update local cache with RTMP info
+        for (dest in response.destinations) {
+            // Find local destination by serviceId within this plan
+            val local = planDao.getById(planId)?.destinations
+                ?.find { it.service == dest.serviceId }
+            if (local != null) {
+                planDao.updateDestinationStream(
+                    id = local.id,
+                    rtmpUrl = dest.rtmpUrl,
+                    streamKey = dest.streamKey,
+                    broadcastId = dest.broadcastId,
+                    status = "READY",
+                )
+            }
+        }
+        planDao.updateStatus(planId, "READY")
+        return response
+    }
+
+    /** Start plan via backend */
+    suspend fun startPlan(planId: String) {
+        apiService.startStreamPlan(planId)
+        planDao.updateStatus(planId, "LIVE")
+    }
+
+    /** End plan via backend */
+    suspend fun endPlan(planId: String) {
+        apiService.endStreamPlan(planId)
+        planDao.updateStatus(planId, "ENDED")
+    }
+
+    suspend fun deletePlan(planId: String) {
+        apiService.deleteStreamPlan(planId)
+        planDao.deletePlan(planId)
+    }
+
+    private suspend fun cacheRemotePlan(remote: StreamPlanResponse) {
+        val planEntity = StreamPlanEntity(planId = remote.id, name = remote.name, status = remote.status)
+        val destEntities = remote.destinations.map { d ->
+            StreamDestinationEntity(
+                id = d.id,
+                planId = remote.id,
+                service = d.serviceId,
+                title = d.title,
+                description = d.description,
+                privacyStatus = d.privacyStatus,
+                gameId = d.gameId,
+                tags = d.tags,
+                rtmpUrl = d.rtmpUrl,
+                streamKey = d.streamKey,
+                broadcastId = d.broadcastId,
+                status = d.status,
+            )
+        }
+        planDao.insertPlanWithDestinations(planEntity, destEntities)
+    }
+
+    private fun StreamPlanWithDestinations.toStreamPlan() = StreamPlan(
+        planId = plan.planId,
+        name = plan.name,
+        status = plan.status,
+        destinations = destinations.map { it.toStreamDestination() },
+    )
+
+    private fun StreamDestinationEntity.toStreamDestination() = StreamDestination(
+        service = service,
+        title = title,
+        description = description,
+        privacyStatus = privacyStatus,
+        gameId = gameId,
+        tags = tags.split(",").filter { it.isNotBlank() },
+        rtmpUrl = rtmpUrl,
+        streamKey = streamKey,
+        broadcastId = broadcastId,
+        status = status,
+    )
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/di/AppModule.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/di/AppModule.kt
@@ -0,0 +1,56 @@
+package com.omixlab.lckcontrol.di
+
+import com.omixlab.lckcontrol.data.remote.AuthInterceptor
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.converter.moshi.MoshiConverterFactory
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object AppModule {
+
+    // TODO: Set from BuildConfig or remote config
+    private const val BASE_URL = "http://192.168.1.60:3100/"
+
+    @Provides
+    @Singleton
+    fun provideMoshi(): Moshi =
+        Moshi.Builder()
+            .addLast(KotlinJsonAdapterFactory())
+            .build()
+
+    @Provides
+    @Singleton
+    fun provideOkHttpClient(authInterceptor: AuthInterceptor): OkHttpClient =
+        OkHttpClient.Builder()
+            .addInterceptor(authInterceptor)
+            .addInterceptor(
+                HttpLoggingInterceptor().apply {
+                    level = HttpLoggingInterceptor.Level.BODY
+                }
+            )
+            .build()
+
+    @Provides
+    @Singleton
+    fun provideRetrofit(okHttpClient: OkHttpClient, moshi: Moshi): Retrofit =
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .client(okHttpClient)
+            .addConverterFactory(MoshiConverterFactory.create(moshi))
+            .build()
+
+    @Provides
+    @Singleton
+    fun provideLckApiService(retrofit: Retrofit): LckApiService =
+        retrofit.create(LckApiService::class.java)
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/di/DatabaseModule.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/di/DatabaseModule.kt
@@ -0,0 +1,31 @@
+package com.omixlab.lckcontrol.di
+
+import android.content.Context
+import androidx.room.Room
+import com.omixlab.lckcontrol.data.local.LckDatabase
+import com.omixlab.lckcontrol.data.local.dao.LinkedAccountDao
+import com.omixlab.lckcontrol.data.local.dao.StreamPlanDao
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object DatabaseModule {
+
+    @Provides
+    @Singleton
+    fun provideDatabase(@ApplicationContext context: Context): LckDatabase =
+        Room.databaseBuilder(context, LckDatabase::class.java, "lck_control.db")
+            .addMigrations(LckDatabase.MIGRATION_1_2)
+            .build()
+
+    @Provides
+    fun provideLinkedAccountDao(db: LckDatabase): LinkedAccountDao = db.linkedAccountDao()
+
+    @Provides
+    fun provideStreamPlanDao(db: LckDatabase): StreamPlanDao = db.streamPlanDao()
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/service/ClientTracker.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/service/ClientTracker.kt
@@ -0,0 +1,41 @@
+package com.omixlab.lckcontrol.service
+
+import java.util.UUID
+import java.util.concurrent.ConcurrentHashMap
+
+data class ConnectedClient(
+    val clientId: String,
+    val clientName: String,
+    val packageName: String,
+    val activePlanId: String? = null,
+    val connectedAt: Long = System.currentTimeMillis(),
+)
+
+class ClientTracker {
+
+    private val clients = ConcurrentHashMap<String, ConnectedClient>()
+
+    fun register(clientName: String, packageName: String): String {
+        val clientId = UUID.randomUUID().toString()
+        clients[clientId] = ConnectedClient(
+            clientId = clientId,
+            clientName = clientName,
+            packageName = packageName,
+        )
+        return clientId
+    }
+
+    fun unregister(clientId: String): ConnectedClient? = clients.remove(clientId)
+
+    fun setActivePlan(clientId: String, planId: String?) {
+        clients.computeIfPresent(clientId) { _, client ->
+            client.copy(activePlanId = planId)
+        }
+    }
+
+    fun getClient(clientId: String): ConnectedClient? = clients[clientId]
+
+    fun getAll(): List<ConnectedClient> = clients.values.toList()
+
+    fun count(): Int = clients.size
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/service/LckControlService.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/service/LckControlService.kt
@@ -0,0 +1,203 @@
+package com.omixlab.lckcontrol.service
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Intent
+import android.content.pm.ServiceInfo
+import android.os.IBinder
+import android.os.RemoteCallbackList
+import com.omixlab.lckcontrol.R
+import com.omixlab.lckcontrol.data.repository.AccountRepository
+import com.omixlab.lckcontrol.data.repository.StreamPlanRepository
+import com.omixlab.lckcontrol.shared.ILckControlCallback
+import com.omixlab.lckcontrol.shared.ILckControlService
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import com.omixlab.lckcontrol.shared.StreamPlan
+import com.omixlab.lckcontrol.shared.StreamPlanConfig
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class LckControlService : Service() {
+
+    companion object {
+        private const val CHANNEL_ID = "lck_control_service"
+        private const val NOTIFICATION_ID = 1
+    }
+
+    @Inject lateinit var accountRepository: AccountRepository
+    @Inject lateinit var streamPlanRepository: StreamPlanRepository
+
+    private val serviceScope = CoroutineScope(SupervisorJob() + Dispatchers.Main)
+    private val clientTracker = ClientTracker()
+    private val callbacks = RemoteCallbackList<ILckControlCallback>()
+
+    private val binder = object : ILckControlService.Stub() {
+
+        override fun getLinkedAccounts(): List<LinkedAccount> = runBlocking {
+            accountRepository.getAccounts()
+        }
+
+        override fun createStreamPlan(config: StreamPlanConfig): StreamPlan = runBlocking {
+            val plan = streamPlanRepository.createPlan(config.name, config.destinations)
+            broadcastPlansChanged()
+            plan
+        }
+
+        override fun prepareStreamPlan(planId: String): StreamPlan = runBlocking {
+            streamPlanRepository.preparePlan(planId)
+            val plan = streamPlanRepository.getPlan(planId) ?: error("Plan not found after prepare")
+            broadcastPlanUpdated(plan)
+            plan
+        }
+
+        override fun getStreamPlans(): List<StreamPlan> = runBlocking {
+            streamPlanRepository.getPlans()
+        }
+
+        override fun getStreamPlan(planId: String): StreamPlan? = runBlocking {
+            streamPlanRepository.getPlan(planId)
+        }
+
+        override fun startStreamPlan(planId: String): Boolean = runBlocking {
+            val plan = streamPlanRepository.getPlan(planId) ?: return@runBlocking false
+            if (plan.status != "READY") return@runBlocking false
+            streamPlanRepository.startPlan(planId)
+            val updated = streamPlanRepository.getPlan(planId)
+            if (updated != null) broadcastPlanUpdated(updated)
+            true
+        }
+
+        override fun endStreamPlan(planId: String): Boolean = runBlocking {
+            val plan = streamPlanRepository.getPlan(planId) ?: return@runBlocking false
+            if (plan.status != "LIVE") return@runBlocking false
+            streamPlanRepository.endPlan(planId)
+            val updated = streamPlanRepository.getPlan(planId)
+            if (updated != null) broadcastPlanUpdated(updated)
+            true
+        }
+
+        override fun registerClient(clientName: String, packageName: String): String {
+            val clientId = clientTracker.register(clientName, packageName)
+            broadcastClientRegistered(clientId)
+            return clientId
+        }
+
+        override fun unregisterClient(clientId: String) {
+            clientTracker.unregister(clientId)
+            broadcastClientUnregistered(clientId)
+        }
+
+        override fun setClientActivePlan(clientId: String, planId: String) {
+            clientTracker.setActivePlan(clientId, planId)
+        }
+
+        override fun registerCallback(callback: ILckControlCallback) {
+            callbacks.register(callback)
+        }
+
+        override fun unregisterCallback(callback: ILckControlCallback) {
+            callbacks.unregister(callback)
+        }
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        createNotificationChannel()
+        startForeground(
+            NOTIFICATION_ID,
+            buildNotification(),
+            ServiceInfo.FOREGROUND_SERVICE_TYPE_CONNECTED_DEVICE,
+        )
+    }
+
+    override fun onBind(intent: Intent?): IBinder = binder
+
+    override fun onDestroy() {
+        serviceScope.cancel()
+        callbacks.kill()
+        super.onDestroy()
+    }
+
+    private fun createNotificationChannel() {
+        val channel = NotificationChannel(
+            CHANNEL_ID,
+            "LCK Control Service",
+            NotificationManager.IMPORTANCE_LOW,
+        ).apply {
+            description = "Manages connected game clients and stream plans"
+        }
+        getSystemService(NotificationManager::class.java).createNotificationChannel(channel)
+    }
+
+    private fun buildNotification(): Notification =
+        Notification.Builder(this, CHANNEL_ID)
+            .setContentTitle("LCK Control")
+            .setContentText("Managing stream connections")
+            .setSmallIcon(R.drawable.ic_launcher_foreground)
+            .setOngoing(true)
+            .build()
+
+    private fun broadcastPlansChanged() {
+        serviceScope.launch {
+            val plans = streamPlanRepository.getPlans()
+            val count = callbacks.beginBroadcast()
+            try {
+                for (i in 0 until count) {
+                    try {
+                        callbacks.getBroadcastItem(i).onStreamPlansChanged(plans)
+                    } catch (_: Exception) {}
+                }
+            } finally {
+                callbacks.finishBroadcast()
+            }
+        }
+    }
+
+    private fun broadcastPlanUpdated(plan: StreamPlan) {
+        val count = callbacks.beginBroadcast()
+        try {
+            for (i in 0 until count) {
+                try {
+                    callbacks.getBroadcastItem(i).onStreamPlanUpdated(plan)
+                } catch (_: Exception) {}
+            }
+        } finally {
+            callbacks.finishBroadcast()
+        }
+    }
+
+    private fun broadcastClientRegistered(clientId: String) {
+        val count = callbacks.beginBroadcast()
+        try {
+            for (i in 0 until count) {
+                try {
+                    callbacks.getBroadcastItem(i).onClientRegistered(clientId)
+                } catch (_: Exception) {}
+            }
+        } finally {
+            callbacks.finishBroadcast()
+        }
+    }
+
+    private fun broadcastClientUnregistered(clientId: String) {
+        val count = callbacks.beginBroadcast()
+        try {
+            for (i in 0 until count) {
+                try {
+                    callbacks.getBroadcastItem(i).onClientUnregistered(clientId)
+                } catch (_: Exception) {}
+            }
+        } finally {
+            callbacks.finishBroadcast()
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/accounts/AccountsScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/accounts/AccountsScreen.kt
@@ -0,0 +1,119 @@
+package com.omixlab.lckcontrol.ui.accounts
+
+import android.app.Activity
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.LinkOff
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AccountsScreen(
+    viewModel: AccountsViewModel = hiltViewModel(),
+) {
+    val accounts by viewModel.accounts.collectAsStateWithLifecycle()
+    val linkError by viewModel.linkError.collectAsStateWithLifecycle()
+    val snackbarHostState = remember { SnackbarHostState() }
+    val context = LocalContext.current
+
+    LaunchedEffect(linkError) {
+        linkError?.let {
+            snackbarHostState.showSnackbar(it)
+            viewModel.clearError()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(title = { Text("Linked Accounts") })
+        },
+        snackbarHost = { SnackbarHost(snackbarHostState) },
+    ) { padding ->
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item { Spacer(Modifier.height(8.dp)) }
+
+            items(accounts, key = { it.serviceId }) { account ->
+                ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(16.dp),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        Column(modifier = Modifier.weight(1f)) {
+                            Text(account.displayName, style = MaterialTheme.typography.titleSmall)
+                            Text(account.serviceId, style = MaterialTheme.typography.bodySmall)
+                        }
+                        IconButton(onClick = { viewModel.unlinkAccount(account.serviceId) }) {
+                            Icon(Icons.Default.LinkOff, contentDescription = "Unlink")
+                        }
+                    }
+                }
+            }
+
+            // Show link buttons for providers not yet linked
+            val linkedServiceIds = accounts.map { it.serviceId }.toSet()
+            val unlinked = viewModel.getUnlinkedProviders(linkedServiceIds)
+
+            if (unlinked.isNotEmpty()) {
+                item {
+                    Spacer(Modifier.height(8.dp))
+                    Text("Add Account", style = MaterialTheme.typography.titleMedium)
+                    Spacer(Modifier.height(4.dp))
+                }
+
+                items(unlinked, key = { it.serviceId }) { provider ->
+                    OutlinedButton(
+                        onClick = {
+                            val activity = context as? Activity ?: return@OutlinedButton
+                            viewModel.linkAccount(activity, provider.serviceId)
+                        },
+                        modifier = Modifier.fillMaxWidth(),
+                    ) {
+                        Icon(Icons.Default.Add, contentDescription = null)
+                        Spacer(Modifier.padding(4.dp))
+                        Text("Link ${provider.displayName}")
+                    }
+                }
+            }
+
+            item { Spacer(Modifier.height(16.dp)) }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/accounts/AccountsViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/accounts/AccountsViewModel.kt
@@ -0,0 +1,84 @@
+package com.omixlab.lckcontrol.ui.accounts
+
+import android.app.Activity
+import android.net.Uri
+import androidx.browser.customtabs.CustomTabsIntent
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.omixlab.lckcontrol.data.repository.AccountRepository
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+data class AvailableProvider(
+    val serviceId: String,
+    val displayName: String,
+)
+
+val ALL_PROVIDERS = listOf(
+    AvailableProvider("YOUTUBE", "YouTube"),
+    AvailableProvider("TWITCH", "Twitch"),
+)
+
+@HiltViewModel
+class AccountsViewModel @Inject constructor(
+    private val accountRepository: AccountRepository,
+) : ViewModel() {
+
+    val accounts: StateFlow<List<LinkedAccount>> = accountRepository.observeAccounts()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+
+    private val _linkError = MutableStateFlow<String?>(null)
+    val linkError: StateFlow<String?> = _linkError.asStateFlow()
+
+    init {
+        // Sync accounts from backend on load
+        viewModelScope.launch {
+            try {
+                accountRepository.syncAccounts()
+            } catch (e: Exception) {
+                // Offline — local cache still works
+            }
+        }
+    }
+
+    fun getUnlinkedProviders(linkedServiceIds: Set<String>): List<AvailableProvider> =
+        ALL_PROVIDERS.filter { it.serviceId !in linkedServiceIds }
+
+    fun linkAccount(activity: Activity, serviceId: String) {
+        viewModelScope.launch {
+            _linkError.value = null
+            try {
+                val url = when (serviceId) {
+                    "YOUTUBE" -> accountRepository.getYouTubeAuthUrl()
+                    "TWITCH" -> accountRepository.getTwitchAuthUrl()
+                    else -> throw IllegalArgumentException("Unknown service: $serviceId")
+                }
+                val customTabsIntent = CustomTabsIntent.Builder().build()
+                customTabsIntent.launchUrl(activity, Uri.parse(url))
+            } catch (e: Exception) {
+                _linkError.value = e.message ?: "Failed to start auth flow"
+            }
+        }
+    }
+
+    fun unlinkAccount(serviceId: String) {
+        viewModelScope.launch {
+            try {
+                accountRepository.unlinkAccount(serviceId)
+            } catch (e: Exception) {
+                _linkError.value = e.message ?: "Failed to unlink account"
+            }
+        }
+    }
+
+    fun clearError() {
+        _linkError.value = null
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/clients/ActiveClientsScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/clients/ActiveClientsScreen.kt
@@ -0,0 +1,137 @@
+package com.omixlab.lckcontrol.ui.clients
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Circle
+import androidx.compose.material.icons.filled.Devices
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ActiveClientsScreen(
+    viewModel: ActiveClientsViewModel = hiltViewModel(),
+) {
+    val clients by viewModel.clients.collectAsStateWithLifecycle()
+    val isConnected by viewModel.isConnected.collectAsStateWithLifecycle()
+
+    Scaffold(
+        topBar = {
+            TopAppBar(title = { Text("Active Clients") })
+        },
+    ) { padding ->
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item {
+                Spacer(Modifier.height(8.dp))
+
+                // Service status
+                ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+                    Row(
+                        modifier = Modifier.padding(16.dp),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        Icon(
+                            Icons.Default.Circle,
+                            contentDescription = null,
+                            tint = if (isConnected) MaterialTheme.colorScheme.primary
+                            else MaterialTheme.colorScheme.error,
+                            modifier = Modifier.height(12.dp).width(12.dp),
+                        )
+                        Spacer(Modifier.width(8.dp))
+                        Text(
+                            if (isConnected) "Service Running" else "Service Disconnected",
+                            style = MaterialTheme.typography.titleSmall,
+                        )
+                    }
+                }
+            }
+
+            if (clients.isEmpty()) {
+                item {
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(vertical = 32.dp),
+                        horizontalAlignment = Alignment.CenterHorizontally,
+                    ) {
+                        Icon(
+                            Icons.Default.Devices,
+                            contentDescription = null,
+                            modifier = Modifier.height(48.dp).width(48.dp),
+                            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                        Spacer(Modifier.height(12.dp))
+                        Text(
+                            "No active clients",
+                            style = MaterialTheme.typography.bodyLarge,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                        Text(
+                            "Game clients will appear here when connected",
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                }
+            } else {
+                items(clients, key = { it.planId }) { client ->
+                    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(16.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                        ) {
+                            Column(modifier = Modifier.weight(1f)) {
+                                Text(client.planName, style = MaterialTheme.typography.titleSmall)
+                                Text(
+                                    "${client.destinationCount} destination(s)",
+                                    style = MaterialTheme.typography.bodySmall,
+                                )
+                            }
+                            Text(
+                                client.planStatus,
+                                style = MaterialTheme.typography.labelMedium,
+                                color = when (client.planStatus) {
+                                    "LIVE" -> MaterialTheme.colorScheme.error
+                                    "READY" -> MaterialTheme.colorScheme.primary
+                                    else -> MaterialTheme.colorScheme.onSurfaceVariant
+                                },
+                            )
+                        }
+                    }
+                }
+            }
+
+            item { Spacer(Modifier.height(16.dp)) }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/clients/ActiveClientsViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/clients/ActiveClientsViewModel.kt
@@ -0,0 +1,111 @@
+package com.omixlab.lckcontrol.ui.clients
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.IBinder
+import androidx.lifecycle.ViewModel
+import com.omixlab.lckcontrol.service.ClientTracker
+import com.omixlab.lckcontrol.service.ConnectedClient
+import com.omixlab.lckcontrol.shared.ILckControlCallback
+import com.omixlab.lckcontrol.shared.ILckControlService
+import com.omixlab.lckcontrol.shared.StreamPlan
+import dagger.hilt.android.lifecycle.HiltViewModel
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import javax.inject.Inject
+
+@HiltViewModel
+class ActiveClientsViewModel @Inject constructor(
+    @ApplicationContext private val context: Context,
+) : ViewModel() {
+
+    private var service: ILckControlService? = null
+
+    private val _clients = MutableStateFlow<List<ClientInfo>>(emptyList())
+    val clients: StateFlow<List<ClientInfo>> = _clients.asStateFlow()
+
+    private val _isConnected = MutableStateFlow(false)
+    val isConnected: StateFlow<Boolean> = _isConnected.asStateFlow()
+
+    private val callback = object : ILckControlCallback.Stub() {
+        override fun onStreamPlansChanged(plans: List<StreamPlan>) {
+            refreshClients()
+        }
+
+        override fun onStreamPlanUpdated(plan: StreamPlan) {
+            refreshClients()
+        }
+
+        override fun onClientRegistered(clientId: String) {
+            refreshClients()
+        }
+
+        override fun onClientUnregistered(clientId: String) {
+            refreshClients()
+        }
+    }
+
+    private val connection = object : ServiceConnection {
+        override fun onServiceConnected(name: ComponentName?, binder: IBinder?) {
+            service = ILckControlService.Stub.asInterface(binder)
+            service?.registerCallback(callback)
+            _isConnected.value = true
+            refreshClients()
+        }
+
+        override fun onServiceDisconnected(name: ComponentName?) {
+            service = null
+            _isConnected.value = false
+            _clients.value = emptyList()
+        }
+    }
+
+    init {
+        bindToService()
+    }
+
+    private fun bindToService() {
+        val intent = Intent().apply {
+            component = ComponentName(
+                context.packageName,
+                "com.omixlab.lckcontrol.service.LckControlService",
+            )
+        }
+        context.bindService(intent, connection, Context.BIND_AUTO_CREATE)
+    }
+
+    private fun refreshClients() {
+        // The service tracks clients internally; for the UI we present
+        // plans and their associated clients. This is a simplified view.
+        val plans = service?.streamPlans ?: emptyList()
+        _clients.value = plans
+            .filter { it.status == "LIVE" || it.status == "READY" }
+            .map { plan ->
+                ClientInfo(
+                    planId = plan.planId,
+                    planName = plan.name,
+                    planStatus = plan.status,
+                    destinationCount = plan.destinations.size,
+                )
+            }
+    }
+
+    override fun onCleared() {
+        service?.unregisterCallback(callback)
+        try {
+            context.unbindService(connection)
+        } catch (_: IllegalArgumentException) {}
+        super.onCleared()
+    }
+}
+
+data class ClientInfo(
+    val planId: String,
+    val planName: String,
+    val planStatus: String,
+    val destinationCount: Int,
+)
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/dashboard/DashboardScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/dashboard/DashboardScreen.kt
@@ -0,0 +1,177 @@
+package com.omixlab.lckcontrol.ui.dashboard
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Circle
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.omixlab.lckcontrol.shared.StreamPlan
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DashboardScreen(
+    onNavigateToCreatePlan: () -> Unit,
+    onNavigateToPlan: (String) -> Unit,
+    viewModel: DashboardViewModel = hiltViewModel(),
+) {
+    val accounts by viewModel.accounts.collectAsStateWithLifecycle()
+    val plans by viewModel.plans.collectAsStateWithLifecycle()
+
+    Scaffold(
+        topBar = {
+            TopAppBar(title = { Text("LCK Control") })
+        },
+        floatingActionButton = {
+            FloatingActionButton(onClick = onNavigateToCreatePlan) {
+                Icon(Icons.Default.Add, contentDescription = "Create Plan")
+            }
+        },
+    ) { padding ->
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item {
+                Spacer(Modifier.height(8.dp))
+                Text("Linked Accounts", style = MaterialTheme.typography.titleMedium)
+                Spacer(Modifier.height(4.dp))
+            }
+
+            if (accounts.isEmpty()) {
+                item {
+                    Card(
+                        modifier = Modifier.fillMaxWidth(),
+                        colors = CardDefaults.cardColors(
+                            containerColor = MaterialTheme.colorScheme.surfaceVariant,
+                        ),
+                    ) {
+                        Text(
+                            "No accounts linked yet. Go to Accounts to get started.",
+                            modifier = Modifier.padding(16.dp),
+                            style = MaterialTheme.typography.bodyMedium,
+                        )
+                    }
+                }
+            } else {
+                item {
+                    Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                        accounts.forEach { account ->
+                            ElevatedCard {
+                                Column(modifier = Modifier.padding(12.dp)) {
+                                    Text(account.displayName, style = MaterialTheme.typography.labelLarge)
+                                    Text(account.serviceId, style = MaterialTheme.typography.bodySmall)
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            item {
+                Spacer(Modifier.height(8.dp))
+                Text("Stream Plans", style = MaterialTheme.typography.titleMedium)
+                Spacer(Modifier.height(4.dp))
+            }
+
+            if (plans.isEmpty()) {
+                item {
+                    Card(
+                        modifier = Modifier.fillMaxWidth(),
+                        colors = CardDefaults.cardColors(
+                            containerColor = MaterialTheme.colorScheme.surfaceVariant,
+                        ),
+                    ) {
+                        Text(
+                            "No stream plans yet. Tap + to create one.",
+                            modifier = Modifier.padding(16.dp),
+                            style = MaterialTheme.typography.bodyMedium,
+                        )
+                    }
+                }
+            } else {
+                items(plans, key = { it.planId }) { plan ->
+                    PlanCard(plan = plan, onClick = { onNavigateToPlan(plan.planId) })
+                }
+            }
+
+            item { Spacer(Modifier.height(80.dp)) }
+        }
+    }
+}
+
+@Composable
+private fun PlanCard(plan: StreamPlan, onClick: () -> Unit) {
+    ElevatedCard(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable(onClick = onClick),
+    ) {
+        Column(modifier = Modifier.padding(16.dp)) {
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Text(plan.name, style = MaterialTheme.typography.titleSmall, modifier = Modifier.weight(1f))
+                Spacer(Modifier.width(8.dp))
+                StatusChip(plan.status)
+            }
+            Spacer(Modifier.height(4.dp))
+            Text(
+                "${plan.destinations.size} destination(s)",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+        }
+    }
+}
+
+@Composable
+private fun StatusChip(status: String) {
+    val color = when (status) {
+        "LIVE" -> MaterialTheme.colorScheme.error
+        "READY" -> MaterialTheme.colorScheme.primary
+        "PREPARING" -> MaterialTheme.colorScheme.tertiary
+        "ENDED" -> MaterialTheme.colorScheme.outline
+        else -> MaterialTheme.colorScheme.onSurfaceVariant
+    }
+    Row(verticalAlignment = Alignment.CenterVertically) {
+        Icon(
+            Icons.Default.Circle,
+            contentDescription = null,
+            tint = color,
+            modifier = Modifier.height(8.dp).width(8.dp),
+        )
+        Spacer(Modifier.width(4.dp))
+        Text(status, style = MaterialTheme.typography.labelSmall, color = color)
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/dashboard/DashboardViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/dashboard/DashboardViewModel.kt
@@ -0,0 +1,26 @@
+package com.omixlab.lckcontrol.ui.dashboard
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.omixlab.lckcontrol.data.repository.AccountRepository
+import com.omixlab.lckcontrol.data.repository.StreamPlanRepository
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import com.omixlab.lckcontrol.shared.StreamPlan
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.stateIn
+import javax.inject.Inject
+
+@HiltViewModel
+class DashboardViewModel @Inject constructor(
+    accountRepository: AccountRepository,
+    streamPlanRepository: StreamPlanRepository,
+) : ViewModel() {
+
+    val accounts: StateFlow<List<LinkedAccount>> = accountRepository.observeAccounts()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+
+    val plans: StateFlow<List<StreamPlan>> = streamPlanRepository.observePlans()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/login/LoginScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/login/LoginScreen.kt
@@ -0,0 +1,91 @@
+package com.omixlab.lckcontrol.ui.login
+
+import android.app.Activity
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.omixlab.lckcontrol.BuildConfig
+
+@Composable
+fun LoginScreen(
+    onLoginSuccess: () -> Unit = {},
+    viewModel: LoginViewModel = hiltViewModel(),
+) {
+    val isLoading by viewModel.isLoading.collectAsStateWithLifecycle()
+    val error by viewModel.error.collectAsStateWithLifecycle()
+    val context = LocalContext.current
+
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+    ) {
+        Column(
+            modifier = Modifier.fillMaxSize(),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.Center,
+        ) {
+            Text(
+                text = "LCK Control",
+                style = MaterialTheme.typography.headlineLarge,
+            )
+
+            Spacer(Modifier.height(8.dp))
+
+            Text(
+                text = "Stream management for Quest",
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+
+            Spacer(Modifier.height(48.dp))
+
+            if (isLoading) {
+                CircularProgressIndicator()
+            } else {
+                Button(
+                    onClick = {
+                        val activity = context as? Activity ?: return@Button
+                        viewModel.loginWithQuest(activity)
+                    },
+                    modifier = Modifier.fillMaxWidth(),
+                ) {
+                    Text("Sign in with Quest")
+                }
+            }
+
+            error?.let { errorMsg ->
+                Spacer(Modifier.height(16.dp))
+                Text(
+                    text = errorMsg,
+                    color = MaterialTheme.colorScheme.error,
+                    style = MaterialTheme.typography.bodySmall,
+                )
+            }
+        }
+
+        Text(
+            text = BuildConfig.DISPLAY_VERSION,
+            modifier = Modifier.align(Alignment.BottomCenter),
+            style = MaterialTheme.typography.labelSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = 0.5f),
+        )
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/login/LoginViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/login/LoginViewModel.kt
@@ -0,0 +1,145 @@
+package com.omixlab.lckcontrol.ui.login
+
+import android.app.Activity
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.omixlab.lckcontrol.data.local.TokenStore
+import com.omixlab.lckcontrol.data.remote.LckApiService
+import com.omixlab.lckcontrol.data.remote.MetaCallbackRequest
+import com.meta.horizon.platform.ovr.Core
+import com.meta.horizon.platform.ovr.models.PlatformInitialize
+import com.meta.horizon.platform.ovr.models.User
+import com.meta.horizon.platform.ovr.models.UserProof
+import com.meta.horizon.platform.ovr.requests.Request
+import com.meta.horizon.platform.ovr.requests.Users
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+import kotlin.coroutines.suspendCoroutine
+
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val tokenStore: TokenStore,
+    private val apiService: LckApiService,
+) : ViewModel() {
+
+    private val _isLoading = MutableStateFlow(false)
+    val isLoading: StateFlow<Boolean> = _isLoading.asStateFlow()
+
+    private val _error = MutableStateFlow<String?>(null)
+    val error: StateFlow<String?> = _error.asStateFlow()
+
+    fun isLoggedIn(): Boolean = tokenStore.isLoggedIn()
+
+    fun loginWithQuest(activity: Activity) {
+        viewModelScope.launch {
+            _isLoading.value = true
+            _error.value = null
+            try {
+                // Initialize Platform SDK
+                if (!Core.isInitialized()) {
+                    Log.d(TAG, "Initializing Platform SDK with appId=$QUEST_APP_ID")
+                    val initResult = Core.initialize(QUEST_APP_ID, activity.applicationContext)
+                    Log.d(TAG, "Core.initialize returned: $initResult")
+                }
+                Log.d(TAG, "Core.isInitialized=${Core.isInitialized()}")
+
+                // Check cached user ID first (synchronous)
+                val cachedUserId = Core.getLoggedInUserID()
+                Log.d(TAG, "Core.getLoggedInUserID() = $cachedUserId")
+
+                if (cachedUserId == 0L) {
+                    throw Exception("Platform SDK returned user ID 0. " +
+                        "Make sure the app is installed from the Horizon store (not sideloaded) " +
+                        "and your account is a test user for this app.")
+                }
+
+                // Get full user via async call with manual message pump
+                val user = awaitWithPump { Users.getLoggedInUser() }
+                val userId = user.getID().toString()
+                Log.d(TAG, "User: id=$userId displayName=${user.displayName}")
+
+                // Get user proof (nonce)
+                val proof = awaitWithPump { Users.getUserProof() }
+                val nonce = proof.value
+                Log.d(TAG, "UserProof nonce=$nonce")
+
+                // Send to backend for verification
+                val response = apiService.metaCallback(
+                    MetaCallbackRequest(
+                        userId = userId,
+                        nonce = nonce,
+                        deviceInfo = android.os.Build.MODEL,
+                    )
+                )
+
+                // Save session tokens
+                tokenStore.saveSession(response.accessToken, response.refreshToken)
+            } catch (e: Exception) {
+                Log.e(TAG, "Quest login failed", e)
+                _error.value = e.message ?: "Login failed"
+            } finally {
+                _isLoading.value = false
+            }
+        }
+    }
+
+    fun clearError() {
+        _error.value = null
+    }
+
+    /**
+     * Awaits a Platform SDK request by manually pumping the message queue.
+     * The SDK requires Request.runCallbacks() to be called for callbacks to fire.
+     */
+    private suspend fun <T> awaitWithPump(
+        block: () -> Request<T>,
+    ): T = suspendCoroutine { cont ->
+        var completed = false
+        block()
+            .onSuccess { result: T ->
+                if (!completed) {
+                    completed = true
+                    cont.resume(result)
+                }
+            }
+            .onError { error ->
+                if (!completed) {
+                    completed = true
+                    cont.resumeWithException(Exception(error.message))
+                }
+            }
+
+        // Pump messages on a background thread
+        Thread {
+            val timeout = System.currentTimeMillis() + 10_000 // 10s timeout
+            while (!completed && System.currentTimeMillis() < timeout) {
+                try {
+                    val msg = Core.popSDKMessage()
+                    if (msg != null) {
+                        Request.handleMessage(msg)
+                    }
+                } catch (e: Exception) {
+                    Log.w(TAG, "Message pump error", e)
+                }
+                Thread.sleep(50)
+            }
+            if (!completed) {
+                completed = true
+                cont.resumeWithException(Exception("Platform SDK request timed out"))
+            }
+        }.start()
+    }
+
+    companion object {
+        private const val TAG = "LoginViewModel"
+        const val QUEST_APP_ID = "25653777174321448"
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/navigation/AppNavigation.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/navigation/AppNavigation.kt
@@ -0,0 +1,121 @@
+package com.omixlab.lckcontrol.ui.navigation
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Dashboard
+import androidx.compose.material.icons.filled.Devices
+import androidx.compose.material.icons.filled.Person
+import androidx.compose.material3.Icon
+import androidx.compose.material3.NavigationBar
+import androidx.compose.material3.NavigationBarItem
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.navigation.NavGraph.Companion.findStartDestination
+import androidx.navigation.NavType
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.currentBackStackEntryAsState
+import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navArgument
+import com.omixlab.lckcontrol.data.local.TokenStore
+import com.omixlab.lckcontrol.ui.accounts.AccountsScreen
+import com.omixlab.lckcontrol.ui.clients.ActiveClientsScreen
+import com.omixlab.lckcontrol.ui.dashboard.DashboardScreen
+import com.omixlab.lckcontrol.ui.login.LoginScreen
+import com.omixlab.lckcontrol.ui.plans.CreatePlanScreen
+import com.omixlab.lckcontrol.ui.plans.PlanDetailScreen
+
+private data class BottomNavItem(
+    val screen: Screen,
+    val label: String,
+    val icon: ImageVector,
+)
+
+private val bottomNavItems = listOf(
+    BottomNavItem(Screen.Dashboard, "Dashboard", Icons.Default.Dashboard),
+    BottomNavItem(Screen.Accounts, "Accounts", Icons.Default.Person),
+    BottomNavItem(Screen.ActiveClients, "Clients", Icons.Default.Devices),
+)
+
+@Composable
+fun AppNavigation(tokenStore: TokenStore) {
+    val navController = rememberNavController()
+    val navBackStackEntry by navController.currentBackStackEntryAsState()
+    val currentRoute = navBackStackEntry?.destination?.route
+
+    val showBottomBar = currentRoute in bottomNavItems.map { it.screen.route }
+    val startDestination = if (tokenStore.isLoggedIn()) Screen.Dashboard.route else Screen.Login.route
+
+    Scaffold(
+        bottomBar = {
+            if (showBottomBar) {
+                NavigationBar {
+                    bottomNavItems.forEach { item ->
+                        NavigationBarItem(
+                            icon = { Icon(item.icon, contentDescription = item.label) },
+                            label = { Text(item.label) },
+                            selected = currentRoute == item.screen.route,
+                            onClick = {
+                                navController.navigate(item.screen.route) {
+                                    popUpTo(navController.graph.findStartDestination().id) {
+                                        saveState = true
+                                    }
+                                    launchSingleTop = true
+                                    restoreState = true
+                                }
+                            },
+                        )
+                    }
+                }
+            }
+        },
+    ) { innerPadding ->
+        NavHost(
+            navController = navController,
+            startDestination = startDestination,
+            modifier = Modifier.padding(innerPadding),
+        ) {
+            composable(Screen.Login.route) {
+                LoginScreen()
+            }
+            composable(Screen.Dashboard.route) {
+                DashboardScreen(
+                    onNavigateToCreatePlan = { navController.navigate(Screen.CreatePlan.route) },
+                    onNavigateToPlan = { planId ->
+                        navController.navigate(Screen.PlanDetail.createRoute(planId))
+                    },
+                )
+            }
+            composable(Screen.Accounts.route) {
+                AccountsScreen()
+            }
+            composable(Screen.CreatePlan.route) {
+                CreatePlanScreen(
+                    onPlanCreated = { planId ->
+                        navController.navigate(Screen.PlanDetail.createRoute(planId)) {
+                            popUpTo(Screen.Dashboard.route)
+                        }
+                    },
+                    onBack = { navController.popBackStack() },
+                )
+            }
+            composable(
+                route = Screen.PlanDetail.route,
+                arguments = listOf(navArgument("planId") { type = NavType.StringType }),
+            ) { backStackEntry ->
+                val planId = backStackEntry.arguments?.getString("planId") ?: return@composable
+                PlanDetailScreen(
+                    planId = planId,
+                    onBack = { navController.popBackStack() },
+                )
+            }
+            composable(Screen.ActiveClients.route) {
+                ActiveClientsScreen()
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/navigation/Screen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/navigation/Screen.kt
@@ -0,0 +1,12 @@
+package com.omixlab.lckcontrol.ui.navigation
+
+sealed class Screen(val route: String) {
+    data object Login : Screen("login")
+    data object Dashboard : Screen("dashboard")
+    data object Accounts : Screen("accounts")
+    data object CreatePlan : Screen("create_plan")
+    data object PlanDetail : Screen("plan_detail/{planId}") {
+        fun createRoute(planId: String) = "plan_detail/$planId"
+    }
+    data object ActiveClients : Screen("active_clients")
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/plans/CreatePlanScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/plans/CreatePlanScreen.kt
@@ -0,0 +1,249 @@
+package com.omixlab.lckcontrol.ui.plans
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material3.Button
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExposedDropdownMenuBox
+import androidx.compose.material3.ExposedDropdownMenuDefaults
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.MenuAnchorType
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun CreatePlanScreen(
+    onPlanCreated: (String) -> Unit,
+    onBack: () -> Unit,
+    viewModel: CreatePlanViewModel = hiltViewModel(),
+) {
+    val planName by viewModel.planName.collectAsStateWithLifecycle()
+    val destinations by viewModel.destinations.collectAsStateWithLifecycle()
+    val linkedAccounts by viewModel.linkedAccounts.collectAsStateWithLifecycle()
+    val isCreating by viewModel.isCreating.collectAsStateWithLifecycle()
+    val error by viewModel.error.collectAsStateWithLifecycle()
+    val snackbarHostState = remember { SnackbarHostState() }
+
+    LaunchedEffect(error) {
+        error?.let {
+            snackbarHostState.showSnackbar(it)
+            viewModel.clearError()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text("Create Stream Plan") },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back")
+                    }
+                },
+            )
+        },
+        snackbarHost = { SnackbarHost(snackbarHostState) },
+    ) { padding ->
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item {
+                Spacer(Modifier.height(8.dp))
+                OutlinedTextField(
+                    value = planName,
+                    onValueChange = viewModel::setPlanName,
+                    label = { Text("Plan Name") },
+                    modifier = Modifier.fillMaxWidth(),
+                    singleLine = true,
+                )
+            }
+
+            item {
+                Spacer(Modifier.height(8.dp))
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                ) {
+                    Text("Destinations", style = MaterialTheme.typography.titleMedium)
+                    OutlinedButton(onClick = viewModel::addDestination) {
+                        Icon(Icons.Default.Add, contentDescription = null)
+                        Spacer(Modifier.padding(4.dp))
+                        Text("Add")
+                    }
+                }
+            }
+
+            itemsIndexed(destinations) { index, dest ->
+                DestinationCard(
+                    destination = dest,
+                    availableServices = linkedAccounts.map { it.serviceId },
+                    onUpdate = { viewModel.updateDestination(index, it) },
+                    onRemove = { viewModel.removeDestination(index) },
+                )
+            }
+
+            item {
+                Spacer(Modifier.height(16.dp))
+                Button(
+                    onClick = { viewModel.createPlan(onPlanCreated) },
+                    modifier = Modifier.fillMaxWidth(),
+                    enabled = !isCreating,
+                ) {
+                    Text(if (isCreating) "Creating..." else "Create Plan")
+                }
+                Spacer(Modifier.height(16.dp))
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun DestinationCard(
+    destination: DestinationInput,
+    availableServices: List<String>,
+    onUpdate: (DestinationInput) -> Unit,
+    onRemove: () -> Unit,
+) {
+    var serviceExpanded by remember { mutableStateOf(false) }
+    var privacyExpanded by remember { mutableStateOf(false) }
+
+    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(8.dp),
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text("Destination", style = MaterialTheme.typography.labelLarge)
+                IconButton(onClick = onRemove) {
+                    Icon(Icons.Default.Delete, contentDescription = "Remove")
+                }
+            }
+
+            // Service picker
+            ExposedDropdownMenuBox(
+                expanded = serviceExpanded,
+                onExpandedChange = { serviceExpanded = it },
+            ) {
+                OutlinedTextField(
+                    value = destination.service,
+                    onValueChange = {},
+                    readOnly = true,
+                    label = { Text("Service") },
+                    trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(serviceExpanded) },
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .menuAnchor(MenuAnchorType.PrimaryNotEditable),
+                )
+                ExposedDropdownMenu(
+                    expanded = serviceExpanded,
+                    onDismissRequest = { serviceExpanded = false },
+                ) {
+                    availableServices.forEach { service ->
+                        DropdownMenuItem(
+                            text = { Text(service) },
+                            onClick = {
+                                onUpdate(destination.copy(service = service))
+                                serviceExpanded = false
+                            },
+                        )
+                    }
+                }
+            }
+
+            OutlinedTextField(
+                value = destination.title,
+                onValueChange = { onUpdate(destination.copy(title = it)) },
+                label = { Text("Stream Title") },
+                modifier = Modifier.fillMaxWidth(),
+                singleLine = true,
+            )
+
+            OutlinedTextField(
+                value = destination.description,
+                onValueChange = { onUpdate(destination.copy(description = it)) },
+                label = { Text("Description") },
+                modifier = Modifier.fillMaxWidth(),
+                minLines = 2,
+            )
+
+            // Privacy status
+            ExposedDropdownMenuBox(
+                expanded = privacyExpanded,
+                onExpandedChange = { privacyExpanded = it },
+            ) {
+                OutlinedTextField(
+                    value = destination.privacyStatus,
+                    onValueChange = {},
+                    readOnly = true,
+                    label = { Text("Privacy") },
+                    trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(privacyExpanded) },
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .menuAnchor(MenuAnchorType.PrimaryNotEditable),
+                )
+                ExposedDropdownMenu(
+                    expanded = privacyExpanded,
+                    onDismissRequest = { privacyExpanded = false },
+                ) {
+                    listOf("public", "unlisted", "private").forEach { status ->
+                        DropdownMenuItem(
+                            text = { Text(status) },
+                            onClick = {
+                                onUpdate(destination.copy(privacyStatus = status))
+                                privacyExpanded = false
+                            },
+                        )
+                    }
+                }
+            }
+
+            OutlinedTextField(
+                value = destination.tags,
+                onValueChange = { onUpdate(destination.copy(tags = it)) },
+                label = { Text("Tags (comma-separated)") },
+                modifier = Modifier.fillMaxWidth(),
+                singleLine = true,
+            )
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/plans/CreatePlanViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/plans/CreatePlanViewModel.kt
@@ -0,0 +1,112 @@
+package com.omixlab.lckcontrol.ui.plans
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.omixlab.lckcontrol.data.repository.AccountRepository
+import com.omixlab.lckcontrol.data.repository.StreamPlanRepository
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import com.omixlab.lckcontrol.shared.StreamDestination
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+data class DestinationInput(
+    val service: String = "",
+    val title: String = "",
+    val description: String = "",
+    val privacyStatus: String = "public",
+    val gameId: String = "",
+    val tags: String = "",
+)
+
+@HiltViewModel
+class CreatePlanViewModel @Inject constructor(
+    accountRepository: AccountRepository,
+    private val streamPlanRepository: StreamPlanRepository,
+) : ViewModel() {
+
+    val linkedAccounts: StateFlow<List<LinkedAccount>> = accountRepository.observeAccounts()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+
+    private val _planName = MutableStateFlow("")
+    val planName: StateFlow<String> = _planName.asStateFlow()
+
+    private val _destinations = MutableStateFlow<List<DestinationInput>>(emptyList())
+    val destinations: StateFlow<List<DestinationInput>> = _destinations.asStateFlow()
+
+    private val _isCreating = MutableStateFlow(false)
+    val isCreating: StateFlow<Boolean> = _isCreating.asStateFlow()
+
+    private val _error = MutableStateFlow<String?>(null)
+    val error: StateFlow<String?> = _error.asStateFlow()
+
+    fun setPlanName(name: String) {
+        _planName.value = name
+    }
+
+    fun addDestination() {
+        _destinations.value = _destinations.value + DestinationInput()
+    }
+
+    fun updateDestination(index: Int, destination: DestinationInput) {
+        _destinations.value = _destinations.value.toMutableList().apply {
+            set(index, destination)
+        }
+    }
+
+    fun removeDestination(index: Int) {
+        _destinations.value = _destinations.value.toMutableList().apply {
+            removeAt(index)
+        }
+    }
+
+    fun createPlan(onCreated: (String) -> Unit) {
+        val name = _planName.value.trim()
+        val dests = _destinations.value
+
+        if (name.isBlank()) {
+            _error.value = "Plan name is required"
+            return
+        }
+        if (dests.isEmpty()) {
+            _error.value = "Add at least one destination"
+            return
+        }
+        if (dests.any { it.service.isBlank() || it.title.isBlank() }) {
+            _error.value = "All destinations need a service and title"
+            return
+        }
+
+        viewModelScope.launch {
+            _isCreating.value = true
+            _error.value = null
+            try {
+                val streamDests = dests.map { input ->
+                    StreamDestination(
+                        service = input.service,
+                        title = input.title,
+                        description = input.description,
+                        privacyStatus = input.privacyStatus,
+                        gameId = input.gameId,
+                        tags = input.tags.split(",").map { it.trim() }.filter { it.isNotBlank() },
+                    )
+                }
+                val plan = streamPlanRepository.createPlan(name, streamDests)
+                onCreated(plan.planId)
+            } catch (e: Exception) {
+                _error.value = e.message ?: "Failed to create plan"
+            } finally {
+                _isCreating.value = false
+            }
+        }
+    }
+
+    fun clearError() {
+        _error.value = null
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/plans/PlanDetailScreen.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/plans/PlanDetailScreen.kt
@@ -0,0 +1,236 @@
+package com.omixlab.lckcontrol.ui.plans
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.ContentCopy
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.omixlab.lckcontrol.shared.StreamDestination
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun PlanDetailScreen(
+    planId: String,
+    onBack: () -> Unit,
+    viewModel: PlanDetailViewModel = hiltViewModel(),
+) {
+    val plan by viewModel.plan.collectAsStateWithLifecycle()
+    val isLoading by viewModel.isLoading.collectAsStateWithLifecycle()
+    val error by viewModel.error.collectAsStateWithLifecycle()
+    val snackbarHostState = remember { SnackbarHostState() }
+
+    LaunchedEffect(error) {
+        error?.let {
+            snackbarHostState.showSnackbar(it)
+            viewModel.clearError()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text(plan?.name ?: "Plan Detail") },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back")
+                    }
+                },
+                actions = {
+                    if (plan?.status == "DRAFT" || plan?.status == "ENDED") {
+                        IconButton(onClick = { viewModel.deletePlan(onBack) }) {
+                            Icon(Icons.Default.Delete, contentDescription = "Delete")
+                        }
+                    }
+                },
+            )
+        },
+        snackbarHost = { SnackbarHost(snackbarHostState) },
+    ) { padding ->
+        val currentPlan = plan
+        if (currentPlan == null) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(padding),
+                horizontalAlignment = Alignment.CenterHorizontally,
+                verticalArrangement = Arrangement.Center,
+            ) {
+                CircularProgressIndicator()
+            }
+            return@Scaffold
+        }
+
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item {
+                Spacer(Modifier.height(8.dp))
+
+                // Status
+                ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+                    Column(modifier = Modifier.padding(16.dp)) {
+                        Text("Status", style = MaterialTheme.typography.labelMedium)
+                        Spacer(Modifier.height(4.dp))
+                        Text(
+                            currentPlan.status,
+                            style = MaterialTheme.typography.headlineSmall,
+                            color = when (currentPlan.status) {
+                                "LIVE" -> MaterialTheme.colorScheme.error
+                                "READY" -> MaterialTheme.colorScheme.primary
+                                else -> MaterialTheme.colorScheme.onSurface
+                            },
+                        )
+                    }
+                }
+            }
+
+            // Action buttons
+            item {
+                when (currentPlan.status) {
+                    "DRAFT" -> {
+                        Button(
+                            onClick = viewModel::preparePlan,
+                            modifier = Modifier.fillMaxWidth(),
+                            enabled = !isLoading,
+                        ) {
+                            if (isLoading) CircularProgressIndicator()
+                            else Text("Prepare Stream")
+                        }
+                    }
+                    "READY" -> {
+                        Button(
+                            onClick = viewModel::startPlan,
+                            modifier = Modifier.fillMaxWidth(),
+                            enabled = !isLoading,
+                        ) {
+                            Text("Go Live")
+                        }
+                    }
+                    "LIVE" -> {
+                        OutlinedButton(
+                            onClick = viewModel::endPlan,
+                            modifier = Modifier.fillMaxWidth(),
+                            colors = ButtonDefaults.outlinedButtonColors(
+                                contentColor = MaterialTheme.colorScheme.error,
+                            ),
+                            enabled = !isLoading,
+                        ) {
+                            Text("End Stream")
+                        }
+                    }
+                }
+            }
+
+            // Destinations
+            item {
+                Spacer(Modifier.height(8.dp))
+                Text("Destinations", style = MaterialTheme.typography.titleMedium)
+            }
+
+            items(currentPlan.destinations) { dest ->
+                DestinationDetailCard(dest)
+            }
+
+            item { Spacer(Modifier.height(16.dp)) }
+        }
+    }
+}
+
+@Composable
+private fun DestinationDetailCard(destination: StreamDestination) {
+    val clipboardManager = LocalClipboardManager.current
+
+    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp),
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically,
+            ) {
+                Text(destination.service, style = MaterialTheme.typography.titleSmall)
+                Text(
+                    destination.status,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = if (destination.status == "READY") MaterialTheme.colorScheme.primary
+                    else MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+
+            Text(destination.title, style = MaterialTheme.typography.bodyMedium)
+
+            if (destination.rtmpUrl.isNotBlank()) {
+                Spacer(Modifier.height(4.dp))
+                Text("RTMP URL", style = MaterialTheme.typography.labelSmall)
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    Text(
+                        destination.rtmpUrl,
+                        style = MaterialTheme.typography.bodySmall,
+                        modifier = Modifier.weight(1f),
+                    )
+                    IconButton(onClick = {
+                        clipboardManager.setText(AnnotatedString(destination.rtmpUrl))
+                    }) {
+                        Icon(Icons.Default.ContentCopy, contentDescription = "Copy", modifier = Modifier.padding(4.dp))
+                    }
+                }
+            }
+
+            if (destination.streamKey.isNotBlank()) {
+                Text("Stream Key", style = MaterialTheme.typography.labelSmall)
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    Text(
+                        destination.streamKey.take(8) + "...",
+                        style = MaterialTheme.typography.bodySmall,
+                        modifier = Modifier.weight(1f),
+                    )
+                    IconButton(onClick = {
+                        clipboardManager.setText(AnnotatedString(destination.streamKey))
+                    }) {
+                        Icon(Icons.Default.ContentCopy, contentDescription = "Copy", modifier = Modifier.padding(4.dp))
+                    }
+                }
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/plans/PlanDetailViewModel.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/plans/PlanDetailViewModel.kt
@@ -0,0 +1,90 @@
+package com.omixlab.lckcontrol.ui.plans
+
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.omixlab.lckcontrol.data.repository.StreamPlanRepository
+import com.omixlab.lckcontrol.shared.StreamPlan
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class PlanDetailViewModel @Inject constructor(
+    savedStateHandle: SavedStateHandle,
+    private val streamPlanRepository: StreamPlanRepository,
+) : ViewModel() {
+
+    private val planId: String = savedStateHandle["planId"] ?: ""
+
+    val plan: StateFlow<StreamPlan?> = streamPlanRepository.observePlan(planId)
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), null)
+
+    private val _isLoading = MutableStateFlow(false)
+    val isLoading: StateFlow<Boolean> = _isLoading.asStateFlow()
+
+    private val _error = MutableStateFlow<String?>(null)
+    val error: StateFlow<String?> = _error.asStateFlow()
+
+    fun preparePlan() {
+        viewModelScope.launch {
+            _isLoading.value = true
+            _error.value = null
+            try {
+                streamPlanRepository.preparePlan(planId)
+            } catch (e: Exception) {
+                _error.value = e.message ?: "Failed to prepare plan"
+            } finally {
+                _isLoading.value = false
+            }
+        }
+    }
+
+    fun startPlan() {
+        viewModelScope.launch {
+            _isLoading.value = true
+            _error.value = null
+            try {
+                streamPlanRepository.startPlan(planId)
+            } catch (e: Exception) {
+                _error.value = e.message ?: "Failed to start plan"
+            } finally {
+                _isLoading.value = false
+            }
+        }
+    }
+
+    fun endPlan() {
+        viewModelScope.launch {
+            _isLoading.value = true
+            _error.value = null
+            try {
+                streamPlanRepository.endPlan(planId)
+            } catch (e: Exception) {
+                _error.value = e.message ?: "Failed to end plan"
+            } finally {
+                _isLoading.value = false
+            }
+        }
+    }
+
+    fun deletePlan(onDeleted: () -> Unit) {
+        viewModelScope.launch {
+            try {
+                streamPlanRepository.deletePlan(planId)
+                onDeleted()
+            } catch (e: Exception) {
+                _error.value = e.message ?: "Failed to delete plan"
+            }
+        }
+    }
+
+    fun clearError() {
+        _error.value = null
+    }
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Color.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Color.kt
@@ -0,0 +1,11 @@
+package com.omixlab.lckcontrol.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Theme.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Theme.kt
@@ -0,0 +1,58 @@
+package com.omixlab.lckcontrol.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun LCKControlTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
--- a/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Type.kt
+++ b/app/src/main/java/com/omixlab/lckcontrol/ui/theme/Type.kt
@@ -0,0 +1,34 @@
+package com.omixlab.lckcontrol.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">LCK Control</string>
+    <string name="permission_use_lck_control_desc">Allows game clients to manage stream plans and receive RTMP endpoints through the LCK Control service.</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.LCKControl" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>
--- a/app/src/main/res/xml/backup_rules.xml
+++ b/app/src/main/res/xml/backup_rules.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older than API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
--- a/app/src/main/res/xml/data_extraction_rules.xml
+++ b/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
--- a/app/src/main/res/xml/network_security_config.xml
+++ b/app/src/main/res/xml/network_security_config.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <!-- Allow cleartext for local LAN testing -->
+    <domain-config cleartextTrafficPermitted="true">
+        <domain includeSubdomains="false">192.168.1.60</domain>
+    </domain-config>
+</network-security-config>
--- a/app/src/test/java/com/omixlab/lckcontrol/ExampleUnitTest.kt
+++ b/app/src/test/java/com/omixlab/lckcontrol/ExampleUnitTest.kt
@@ -0,0 +1,17 @@
+package com.omixlab.lckcontrol
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -0,0 +1,8 @@
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.android.library) apply false
+    alias(libs.plugins.kotlin.compose) apply false
+    alias(libs.plugins.kotlin.parcelize) apply false
+    alias(libs.plugins.hilt) apply false
+    alias(libs.plugins.ksp) apply false
+}
--- a/deploy.ps1
+++ b/deploy.ps1
@@ -0,0 +1,51 @@
+param(
+    [Parameter(Mandatory=$true)]
+    [string]$Channel,
+
+    [ValidateSet("release", "debug")]
+    [string]$BuildType = "release"
+)
+
+$ErrorActionPreference = "Stop"
+
+$AppId = "25653777174321448"
+$Token = "OC|25653777174321448|b861e3eeaf58edf097812b5fe588dabb"
+$BuildGradle = "$PSScriptRoot\app\build.gradle.kts"
+$OvrUtil = "$PSScriptRoot\ovr-platform-util.exe"
+
+# --- Bump versionCode ---
+$content = Get-Content $BuildGradle -Raw
+if ($content -match 'versionCode\s*=\s*(\d+)') {
+    $oldCode = [int]$Matches[1]
+    $newCode = $oldCode + 1
+    $content = $content -replace "versionCode\s*=\s*$oldCode", "versionCode = $newCode"
+    Set-Content $BuildGradle $content -NoNewline
+    Write-Host "Bumped versionCode: $oldCode -> $newCode" -ForegroundColor Cyan
+} else {
+    Write-Error "Could not find versionCode in build.gradle.kts"
+}
+
+# --- Build APK ---
+$task = if ($BuildType -eq "release") { ":app:assembleRelease" } else { ":app:assembleDebug" }
+Write-Host "Building $BuildType APK..." -ForegroundColor Cyan
+& "$PSScriptRoot\gradlew.bat" $task
+if ($LASTEXITCODE -ne 0) { Write-Error "Build failed" }
+
+$apk = "$PSScriptRoot\app\build\outputs\apk\$BuildType\app-$BuildType.apk"
+if (-not (Test-Path $apk)) { Write-Error "APK not found: $apk" }
+
+Write-Host "APK: $apk" -ForegroundColor Green
+
+# --- Upload ---
+Write-Host "Uploading to channel '$Channel'..." -ForegroundColor Cyan
+& $OvrUtil upload-quest-build `
+    --app-id $AppId `
+    --token $Token `
+    --apk $apk `
+    --channel $Channel `
+    --age-group MIXED_AGES `
+    --notes "v$newCode $BuildType build"
+
+if ($LASTEXITCODE -ne 0) { Write-Error "Upload failed" }
+
+Write-Host "Deployed versionCode $newCode ($BuildType) to '$Channel'" -ForegroundColor Green
--- a/gradle.properties
+++ b/gradle.properties
@@ -0,0 +1,25 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
+# Allow KSP to add Kotlin source sets (needed for KSP + AGP 9 built-in Kotlin)
+android.disallowKotlinSourceSets=false
--- a/gradle/gradle-daemon-jvm.properties
+++ b/gradle/gradle-daemon-jvm.properties
@@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73bcfb608d1fde9fb62e462f834a3299/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/846ee0d876d26a26f37aa1ce8de73224/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9482ddec596298c84656d31d16652665/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/39701d92e1756bb2f141eb67cd4c660e/redirect
+toolchainVersion=21
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,88 @@
+[versions]
+agp = "9.0.1"
+kotlin = "2.2.10"
+ksp = "2.2.10-2.0.2"
+coreKtx = "1.10.1"
+junit = "4.13.2"
+junitVersion = "1.1.5"
+espressoCore = "3.5.1"
+lifecycleRuntimeKtx = "2.6.1"
+activityCompose = "1.8.0"
+composeBom = "2024.09.00"
+hilt = "2.59.2"
+hiltNavigationCompose = "1.2.0"
+room = "2.8.4"
+navigationCompose = "2.8.4"
+retrofit = "2.11.0"
+moshi = "1.15.1"
+okhttp = "4.12.0"
+securityCrypto = "1.0.0"
+browser = "1.8.0"
+coroutines = "1.9.0"
+credentials = "1.3.0"
+googleid = "1.1.1"
+googleApiClientAndroid = "2.7.0"
+googleHttpClientGson = "1.44.2"
+youtubeApi = "v3-rev20231011-2.0.0"
+
+[libraries]
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-lifecycle-runtime-ktx = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
+androidx-lifecycle-viewmodel-compose = { group = "androidx.lifecycle", name = "lifecycle-viewmodel-compose", version.ref = "lifecycleRuntimeKtx" }
+androidx-lifecycle-runtime-compose = { group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "lifecycleRuntimeKtx" }
+androidx-activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
+androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+androidx-compose-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-compose-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-compose-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-compose-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-compose-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+androidx-compose-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+androidx-compose-material3 = { group = "androidx.compose.material3", name = "material3" }
+androidx-compose-material-icons-extended = { group = "androidx.compose.material", name = "material-icons-extended" }
+androidx-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
+androidx-hilt-navigation-compose = { group = "androidx.hilt", name = "hilt-navigation-compose", version.ref = "hiltNavigationCompose" }
+
+# Hilt
+hilt-android = { group = "com.google.dagger", name = "hilt-android", version.ref = "hilt" }
+hilt-compiler = { group = "com.google.dagger", name = "hilt-compiler", version.ref = "hilt" }
+
+# Room
+room-runtime = { group = "androidx.room", name = "room-runtime", version.ref = "room" }
+room-ktx = { group = "androidx.room", name = "room-ktx", version.ref = "room" }
+room-compiler = { group = "androidx.room", name = "room-compiler", version.ref = "room" }
+
+# Networking
+retrofit = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit" }
+retrofit-converter-moshi = { group = "com.squareup.retrofit2", name = "converter-moshi", version.ref = "retrofit" }
+moshi-kotlin = { group = "com.squareup.moshi", name = "moshi-kotlin", version.ref = "moshi" }
+okhttp = { group = "com.squareup.okhttp3", name = "okhttp", version.ref = "okhttp" }
+okhttp-logging = { group = "com.squareup.okhttp3", name = "logging-interceptor", version.ref = "okhttp" }
+
+# Security
+androidx-security-crypto = { group = "androidx.security", name = "security-crypto", version.ref = "securityCrypto" }
+
+# Auth
+androidx-credentials = { group = "androidx.credentials", name = "credentials", version.ref = "credentials" }
+androidx-credentials-play-services = { group = "androidx.credentials", name = "credentials-play-services-auth", version.ref = "credentials" }
+googleid = { group = "com.google.android.libraries.identity.googleid", name = "googleid", version.ref = "googleid" }
+google-api-client-android = { group = "com.google.api-client", name = "google-api-client-android", version.ref = "googleApiClientAndroid" }
+google-http-client-gson = { group = "com.google.http-client", name = "google-http-client-gson", version.ref = "googleHttpClientGson" }
+google-api-services-youtube = { group = "com.google.apis", name = "google-api-services-youtube", version.ref = "youtubeApi" }
+
+# Browser (Custom Tabs)
+androidx-browser = { group = "androidx.browser", name = "browser", version.ref = "browser" }
+
+# Coroutines
+kotlinx-coroutines-android = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "coroutines" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+android-library = { id = "com.android.library", version.ref = "agp" }
+kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+kotlin-parcelize = { id = "org.jetbrains.kotlin.plugin.parcelize", version.ref = "kotlin" }
+hilt = { id = "com.google.dagger.hilt.android", version.ref = "hilt" }
+ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,9 @@
+#Mon Feb 23 08:53:07 CET 2026
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionSha256Sum=72f44c9f8ebcb1af43838f45ee5c4aa9c5444898b3468ab3f4af7b6076c5bc3f
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/251
+++ b/251
@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 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 "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$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 "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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, 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" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# 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/gradlew.bat
+++ b/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=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+: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/lck-control.keystore
+++ b/lck-control.keystore
--- a/sdk/build.gradle.kts
+++ b/sdk/build.gradle.kts
@@ -0,0 +1,23 @@
+plugins {
+    alias(libs.plugins.android.library)
+}
+
+android {
+    namespace = "com.omixlab.lckcontrol.sdk"
+    compileSdk = 36
+
+    defaultConfig {
+        minSdk = 33
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+}
+
+dependencies {
+    api(project(":shared"))
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.kotlinx.coroutines.android)
+}
--- a/sdk/src/main/AndroidManifest.xml
+++ b/sdk/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest />
--- a/sdk/src/main/java/com/omixlab/lckcontrol/sdk/LckControlClient.kt
+++ b/sdk/src/main/java/com/omixlab/lckcontrol/sdk/LckControlClient.kt
@@ -0,0 +1,122 @@
+package com.omixlab.lckcontrol.sdk
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.IBinder
+import com.omixlab.lckcontrol.shared.ILckControlCallback
+import com.omixlab.lckcontrol.shared.ILckControlService
+import com.omixlab.lckcontrol.shared.LinkedAccount
+import com.omixlab.lckcontrol.shared.StreamPlan
+import com.omixlab.lckcontrol.shared.StreamPlanConfig
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+class LckControlClient(private val context: Context) {
+
+    companion object {
+        private const val SERVICE_PACKAGE = "com.omixlab.lckcontrol"
+        private const val SERVICE_CLASS = "$SERVICE_PACKAGE.service.LckControlService"
+        private const val PERMISSION = "$SERVICE_PACKAGE.permission.USE_LCK_CONTROL"
+    }
+
+    private var service: ILckControlService? = null
+    private var clientId: String? = null
+
+    private val _connected = MutableStateFlow(false)
+    val connected: StateFlow<Boolean> = _connected.asStateFlow()
+
+    private val _streamPlans = MutableStateFlow<List<StreamPlan>>(emptyList())
+    val streamPlans: StateFlow<List<StreamPlan>> = _streamPlans.asStateFlow()
+
+    private val callback = object : ILckControlCallback.Stub() {
+        override fun onStreamPlansChanged(plans: List<StreamPlan>) {
+            _streamPlans.value = plans
+        }
+
+        override fun onStreamPlanUpdated(plan: StreamPlan) {
+            _streamPlans.value = _streamPlans.value.map {
+                if (it.planId == plan.planId) plan else it
+            }
+        }
+
+        override fun onClientRegistered(id: String) {}
+        override fun onClientUnregistered(id: String) {}
+    }
+
+    private val connection = object : ServiceConnection {
+        override fun onServiceConnected(name: ComponentName?, binder: IBinder?) {
+            service = ILckControlService.Stub.asInterface(binder)
+            service?.registerCallback(callback)
+            _connected.value = true
+        }
+
+        override fun onServiceDisconnected(name: ComponentName?) {
+            service = null
+            clientId = null
+            _connected.value = false
+        }
+    }
+
+    fun bind(): Boolean {
+        val intent = Intent().apply {
+            component = ComponentName(SERVICE_PACKAGE, SERVICE_CLASS)
+        }
+        return context.bindService(intent, connection, Context.BIND_AUTO_CREATE)
+    }
+
+    fun unbind() {
+        service?.let { svc ->
+            clientId?.let { svc.unregisterClient(it) }
+            svc.unregisterCallback(callback)
+        }
+        try {
+            context.unbindService(connection)
+        } catch (_: IllegalArgumentException) {
+            // Already unbound
+        }
+        service = null
+        clientId = null
+        _connected.value = false
+    }
+
+    fun registerAsClient(clientName: String, packageName: String): String? {
+        val id = service?.registerClient(clientName, packageName)
+        clientId = id
+        return id
+    }
+
+    fun getLinkedAccounts(): List<LinkedAccount> {
+        return service?.linkedAccounts ?: emptyList()
+    }
+
+    fun getStreamPlans(): List<StreamPlan> {
+        return service?.streamPlans ?: emptyList()
+    }
+
+    fun getStreamPlan(planId: String): StreamPlan? {
+        return service?.getStreamPlan(planId)
+    }
+
+    fun createStreamPlan(config: StreamPlanConfig): StreamPlan? {
+        return service?.createStreamPlan(config)
+    }
+
+    fun prepareStreamPlan(planId: String): StreamPlan? {
+        return service?.prepareStreamPlan(planId)
+    }
+
+    fun startStreamPlan(planId: String): Boolean {
+        return service?.startStreamPlan(planId) ?: false
+    }
+
+    fun endStreamPlan(planId: String): Boolean {
+        return service?.endStreamPlan(planId) ?: false
+    }
+
+    fun setClientActivePlan(planId: String) {
+        clientId?.let { service?.setClientActivePlan(it, planId) }
+    }
+}
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -0,0 +1,28 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "LCK Control"
+include(":app")
+include(":shared")
+include(":sdk")
--- a/shared/build.gradle.kts
+++ b/shared/build.gradle.kts
@@ -0,0 +1,25 @@
+plugins {
+    alias(libs.plugins.android.library)
+}
+
+android {
+    namespace = "com.omixlab.lckcontrol.shared"
+    compileSdk = 36
+
+    defaultConfig {
+        minSdk = 32
+    }
+
+    buildFeatures {
+        aidl = true
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+}
+
+dependencies {
+    implementation(libs.androidx.core.ktx)
+}
--- a/shared/src/main/AndroidManifest.xml
+++ b/shared/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest />
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/ILckControlCallback.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/ILckControlCallback.aidl
@@ -0,0 +1,10 @@
+package com.omixlab.lckcontrol.shared;
+
+import com.omixlab.lckcontrol.shared.StreamPlan;
+
+interface ILckControlCallback {
+    void onStreamPlansChanged(in List<StreamPlan> plans);
+    void onStreamPlanUpdated(in StreamPlan plan);
+    void onClientRegistered(String clientId);
+    void onClientUnregistered(String clientId);
+}
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/ILckControlService.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/ILckControlService.aidl
@@ -0,0 +1,21 @@
+package com.omixlab.lckcontrol.shared;
+
+import com.omixlab.lckcontrol.shared.LinkedAccount;
+import com.omixlab.lckcontrol.shared.StreamPlan;
+import com.omixlab.lckcontrol.shared.StreamPlanConfig;
+import com.omixlab.lckcontrol.shared.ILckControlCallback;
+
+interface ILckControlService {
+    List<LinkedAccount> getLinkedAccounts();
+    StreamPlan createStreamPlan(in StreamPlanConfig config);
+    StreamPlan prepareStreamPlan(String planId);
+    List<StreamPlan> getStreamPlans();
+    StreamPlan getStreamPlan(String planId);
+    boolean startStreamPlan(String planId);
+    boolean endStreamPlan(String planId);
+    String registerClient(String clientName, String packageName);
+    void unregisterClient(String clientId);
+    void setClientActivePlan(String clientId, String planId);
+    void registerCallback(ILckControlCallback callback);
+    void unregisterCallback(ILckControlCallback callback);
+}
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/LinkedAccount.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/LinkedAccount.aidl
@@ -0,0 +1,3 @@
+package com.omixlab.lckcontrol.shared;
+
+parcelable LinkedAccount;
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamDestination.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamDestination.aidl
@@ -0,0 +1,3 @@
+package com.omixlab.lckcontrol.shared;
+
+parcelable StreamDestination;
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamPlan.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamPlan.aidl
@@ -0,0 +1,3 @@
+package com.omixlab.lckcontrol.shared;
+
+parcelable StreamPlan;
--- a/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamPlanConfig.aidl
+++ b/shared/src/main/aidl/com/omixlab/lckcontrol/shared/StreamPlanConfig.aidl
@@ -0,0 +1,3 @@
+package com.omixlab.lckcontrol.shared;
+
+parcelable StreamPlanConfig;
--- a/shared/src/main/java/com/omixlab/lckcontrol/shared/LinkedAccount.kt
+++ b/shared/src/main/java/com/omixlab/lckcontrol/shared/LinkedAccount.kt
@@ -0,0 +1,36 @@
+package com.omixlab.lckcontrol.shared
+
+import android.os.Parcel
+import android.os.Parcelable
+
+data class LinkedAccount(
+    val serviceId: String,
+    val displayName: String,
+    val accountId: String,
+    val avatarUrl: String? = null,
+    val isAuthenticated: Boolean = false,
+) : Parcelable {
+
+    constructor(parcel: Parcel) : this(
+        serviceId = parcel.readString()!!,
+        displayName = parcel.readString()!!,
+        accountId = parcel.readString()!!,
+        avatarUrl = parcel.readString(),
+        isAuthenticated = parcel.readInt() != 0,
+    )
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeString(serviceId)
+        parcel.writeString(displayName)
+        parcel.writeString(accountId)
+        parcel.writeString(avatarUrl)
+        parcel.writeInt(if (isAuthenticated) 1 else 0)
+    }
+
+    override fun describeContents(): Int = 0
+
+    companion object CREATOR : Parcelable.Creator<LinkedAccount> {
+        override fun createFromParcel(parcel: Parcel) = LinkedAccount(parcel)
+        override fun newArray(size: Int) = arrayOfNulls<LinkedAccount>(size)
+    }
+}
--- a/shared/src/main/java/com/omixlab/lckcontrol/shared/StreamDestination.kt
+++ b/shared/src/main/java/com/omixlab/lckcontrol/shared/StreamDestination.kt
@@ -0,0 +1,51 @@
+package com.omixlab.lckcontrol.shared
+
+import android.os.Parcel
+import android.os.Parcelable
+
+data class StreamDestination(
+    val service: String,
+    val title: String,
+    val description: String = "",
+    val privacyStatus: String = "public",
+    val gameId: String = "",
+    val tags: List<String> = emptyList(),
+    val rtmpUrl: String = "",
+    val streamKey: String = "",
+    val broadcastId: String = "",
+    val status: String = "PENDING",
+) : Parcelable {
+
+    constructor(parcel: Parcel) : this(
+        service = parcel.readString()!!,
+        title = parcel.readString()!!,
+        description = parcel.readString() ?: "",
+        privacyStatus = parcel.readString() ?: "public",
+        gameId = parcel.readString() ?: "",
+        tags = parcel.createStringArrayList() ?: emptyList(),
+        rtmpUrl = parcel.readString() ?: "",
+        streamKey = parcel.readString() ?: "",
+        broadcastId = parcel.readString() ?: "",
+        status = parcel.readString() ?: "PENDING",
+    )
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeString(service)
+        parcel.writeString(title)
+        parcel.writeString(description)
+        parcel.writeString(privacyStatus)
+        parcel.writeString(gameId)
+        parcel.writeStringList(tags)
+        parcel.writeString(rtmpUrl)
+        parcel.writeString(streamKey)
+        parcel.writeString(broadcastId)
+        parcel.writeString(status)
+    }
+
+    override fun describeContents(): Int = 0
+
+    companion object CREATOR : Parcelable.Creator<StreamDestination> {
+        override fun createFromParcel(parcel: Parcel) = StreamDestination(parcel)
+        override fun newArray(size: Int) = arrayOfNulls<StreamDestination>(size)
+    }
+}
--- a/shared/src/main/java/com/omixlab/lckcontrol/shared/StreamPlan.kt
+++ b/shared/src/main/java/com/omixlab/lckcontrol/shared/StreamPlan.kt
@@ -0,0 +1,33 @@
+package com.omixlab.lckcontrol.shared
+
+import android.os.Parcel
+import android.os.Parcelable
+
+data class StreamPlan(
+    val planId: String,
+    val name: String,
+    val status: String = "DRAFT",
+    val destinations: List<StreamDestination> = emptyList(),
+) : Parcelable {
+
+    constructor(parcel: Parcel) : this(
+        planId = parcel.readString()!!,
+        name = parcel.readString()!!,
+        status = parcel.readString() ?: "DRAFT",
+        destinations = parcel.createTypedArrayList(StreamDestination.CREATOR) ?: emptyList(),
+    )
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeString(planId)
+        parcel.writeString(name)
+        parcel.writeString(status)
+        parcel.writeTypedList(destinations)
+    }
+
+    override fun describeContents(): Int = 0
+
+    companion object CREATOR : Parcelable.Creator<StreamPlan> {
+        override fun createFromParcel(parcel: Parcel) = StreamPlan(parcel)
+        override fun newArray(size: Int) = arrayOfNulls<StreamPlan>(size)
+    }
+}
--- a/Show More
+++ b/Show More