diff --git a/apps/giga-wear/backend/.gitignore b/apps/giga-wear/backend/.gitignore
new file mode 100644
index 0000000..dd86a94
--- /dev/null
+++ b/apps/giga-wear/backend/.gitignore
@@ -0,0 +1,4 @@
+/build
+/videobox
+/bin
+back.env
\ No newline at end of file
diff --git a/apps/giga-wear/backend/build.gradle.kts b/apps/giga-wear/backend/build.gradle.kts
new file mode 100644
index 0000000..d5f48b6
--- /dev/null
+++ b/apps/giga-wear/backend/build.gradle.kts
@@ -0,0 +1,101 @@
+plugins {
+    alias(libs.plugins.convention.backend.app)
+    alias(libs.plugins.ktor)
+    alias(libs.plugins.sqldelight)
+    alias(libs.plugins.serialization)
+    alias(libs.plugins.convention.koin)
+}
+
+sqldelight {
+    databases {
+        create("AppDatabase") {
+            packageName.set("ru.shadowsparky.gigawear.backend")
+            dialect("app.cash.sqldelight:postgresql-dialect:2.0.2")
+        }
+    }
+}
+
+dependencies {
+    implementation(project(":apps:giga-wear:common"))
+    implementation(project(":libs:backend-base"))
+    implementation(project(":libs:base"))
+    implementation(project(":libs:http-client"))
+    implementation(project(":feature:updater:updater-common"))
+    implementation(project(":feature:chat:chat-common"))
+    implementation(project(":feature:chat:chat-backend"))
+
+    implementation(libs.ktor.server.core.jvm)
+    implementation(libs.ktor.server.host.common.jvm)
+    implementation(libs.ktor.server.status.pages.jvm)
+    implementation(libs.ktor.server.content.negotiation.jvm)
+    implementation(libs.ktor.serialization.kotlinx.json.jvm)
+    implementation(libs.ktor.server.netty.jvm)
+    implementation(libs.ktor.server.auth)
+    implementation(libs.ktor.server.auth.jwt)
+    implementation(libs.ktor.server.websockets.jvm)
+    implementation(libs.ktor.server.cors)
+
+    implementation(libs.androidx.datastore.preferences.core)
+    implementation(libs.jdbc.driver)
+    implementation(libs.postgresql)
+    implementation(libs.coroutines.extensions)
+}
+
+java {
+    sourceCompatibility = JavaVersion.toVersion(libs.versions.proj.server.java.get())
+    targetCompatibility = JavaVersion.toVersion(libs.versions.proj.server.java.get())
+}
+
+group = "ru.shadowsparky.gigawear"
+version = "1.0"
+
+val mainClassName = "ru.shadowsparky.gigawear.backend.MainKt"
+
+application {
+    mainClass.set(mainClassName)
+
+    val isDevelopment: Boolean = project.ext.has("development")
+    applicationDefaultJvmArgs = listOf("-Dio.ktor.development=$isDevelopment")
+}
+
+ktor {
+    fatJar {
+        archiveFileName.set("server-fat.jar")
+    }
+}
+
+tasks {
+    named("build") {
+        dependsOn("buildFatJar")
+    }
+    register<Exec>("deployRemote") {
+        dependsOn("buildFatJar")
+        commandLine(
+            getCommandLine(
+                "docker context use remote",
+                "docker build . -t gigawear-server",
+                "docker context use default"
+            )
+        )
+        notCompatibleWithConfigurationCache("This task uses Exec which is not compatible with configuration cache")
+    }
+    register<Exec>("deployLocal") {
+        dependsOn("buildFatJar")
+        commandLine(
+            getCommandLine(
+                "docker compose down",
+                "docker compose up -d --build --force-recreate"
+            )
+        )
+        notCompatibleWithConfigurationCache("This task uses Exec which is not compatible with configuration cache")
+    }
+}
+
+private fun getCommandLine(vararg commands: String): List<String> {
+    val osName = System.getProperty("os.name").lowercase()
+    return if (osName.contains("win")) {
+        listOf("cmd", "/c") + commands.joinToString(" && ")
+    } else {
+        listOf("sh", "-c") + commands.joinToString(" && ")
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/BackendModule.kt b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/BackendModule.kt
new file mode 100644
index 0000000..a2c75ad
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/BackendModule.kt
@@ -0,0 +1,23 @@
+package ru.shadowsparky.gigawear.backend
+import org.koin.core.annotation.ComponentScan
+import org.koin.core.annotation.Configuration
+import org.koin.core.annotation.Module
+import org.koin.core.annotation.Single
+import ru.shadowsparky.backend.data.EnvFetcher
+import ru.shadowsparky.backend.domain.JwtInfo
+
+@Module
+@ComponentScan
+@Configuration
+class BackendModule {
+
+    @Single
+    fun provideJwtInfo(envFetcher: EnvFetcher): JwtInfo {
+        return JwtInfo(
+            envFetcher.get("GIGA_WEAR_SECRET", "secret"),
+            "https://shadowsparky.ru/",
+            "https://wear.shadowsparky.ru/",
+            "wear"
+        )
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/Main.kt b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/Main.kt
new file mode 100644
index 0000000..3c7b088
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/Main.kt
@@ -0,0 +1,27 @@
+package ru.shadowsparky.gigawear.backend
+
+import io.ktor.http.HttpStatusCode
+import io.ktor.server.application.Application
+import io.ktor.server.response.respond
+import io.ktor.server.routing.get
+import io.ktor.server.routing.routing
+import org.koin.core.annotation.KoinApplication
+import org.koin.core.component.KoinComponent
+import org.koin.plugin.module.dsl.startKoin
+
+@KoinApplication
+object GigaWearApp
+
+fun main(args: Array<String>) {
+    startKoin<GigaWearApp>()
+    io.ktor.server.netty.EngineMain.main(args)
+}
+
+fun Application.module() {
+    val koin = object : KoinComponent {}
+    this.routing {
+        get("health") {
+            this.call.respond(HttpStatusCode.OK)
+        }
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/ClientIdProviderImpl.kt b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/ClientIdProviderImpl.kt
new file mode 100644
index 0000000..2616999
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/ClientIdProviderImpl.kt
@@ -0,0 +1,11 @@
+package ru.shadowsparky.gigawear.backend.data
+
+import org.koin.core.annotation.Factory
+import ru.shadowsparky.chat.backend.domain.ChatService
+
+@Factory
+class ClientIdProviderImpl : ChatService.ClientIdProvider {
+    override suspend fun provide(userId: Long): String {
+        return "gigawear-$userId"
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/LoginVerifierImpl.kt b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/LoginVerifierImpl.kt
new file mode 100644
index 0000000..c7a3715
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/LoginVerifierImpl.kt
@@ -0,0 +1,10 @@
+package ru.shadowsparky.gigawear.backend.data
+
+import org.koin.core.annotation.Factory
+import ru.shadowsparky.backend.domain.LoginVerifier
+
+@Factory
+class LoginVerifierImpl : LoginVerifier {
+    override suspend fun verify(login: String) {
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/MessageStorageImpl.kt b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/MessageStorageImpl.kt
new file mode 100644
index 0000000..37ca3d2
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/kotlin/ru/shadowsparky/gigawear/backend/data/MessageStorageImpl.kt
@@ -0,0 +1,48 @@
+package ru.shadowsparky.gigawear.backend.data
+
+import org.koin.core.annotation.Single
+import ru.shadowsparky.chat.backend.domain.MessageStorage
+import ru.shadowsparky.chat.domain.Message
+
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicLong
+
+@Single
+class MessageStorageImpl : MessageStorage {
+    private val storage = ConcurrentHashMap<Long, MutableList<Message>>()
+    private val idGenerator = AtomicLong(1)
+
+    override suspend fun query(
+        userId: Long,
+        afterId: Long?,
+        limit: Int
+    ): List<Message> {
+        val userMessages = storage[userId] ?: return emptyList()
+        synchronized(userMessages) {
+            val filteredList = if (afterId != null) {
+                val index = userMessages.indexOfFirst { it.id == afterId }
+                if (index != -1 && index + 1 < userMessages.size) {
+                    userMessages.subList(index + 1, userMessages.size)
+                } else {
+                    emptyList()
+                }
+            } else {
+                userMessages
+            }
+            return filteredList.take(limit).toList()
+        }
+    }
+
+    override suspend fun insert(
+        userId: Long,
+        message: Message
+    ): Long {
+        val userMessages = storage.computeIfAbsent(userId) { ArrayList() }
+        val newId = idGenerator.getAndIncrement()
+        val messageToInsert = message.copy(id = newId)
+        synchronized(userMessages) {
+            userMessages.add(messageToInsert)
+        }
+        return newId
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/resources/application.conf b/apps/giga-wear/backend/src/main/resources/application.conf
new file mode 100644
index 0000000..f1e9e53
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/resources/application.conf
@@ -0,0 +1,8 @@
+ktor {
+    deployment {
+        port = 8181
+    }
+    application {
+        modules = [ ru.shadowsparky.gigawear.backend.MainKt.module ]
+    }
+}
diff --git a/apps/giga-wear/backend/src/main/resources/logback.xml b/apps/giga-wear/backend/src/main/resources/logback.xml
new file mode 100644
index 0000000..678bbd4
--- /dev/null
+++ b/apps/giga-wear/backend/src/main/resources/logback.xml
@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="debug">
+        <appender-ref ref="STDOUT" />
+    </root>
+    <logger name="org.eclipse.jetty" level="INFO" />
+    <logger name="io.netty" level="INFO" />
+</configuration>
diff --git a/apps/giga-wear/client/build.gradle.kts b/apps/giga-wear/client/build.gradle.kts
index 911969d..fb13cca 100644
--- a/apps/giga-wear/client/build.gradle.kts
+++ b/apps/giga-wear/client/build.gradle.kts
@@ -25,6 +25,7 @@ android {
 
 dependencies {
     implementation(platform(libs.androidx.compose.bom))
+    implementation(project(":apps:giga-wear:common"))
     implementation(project(":libs:ui"))
     implementation(project(":libs:http-client"))
     implementation(project(":libs:base"))
diff --git a/apps/giga-wear/common/.gitignore b/apps/giga-wear/common/.gitignore
new file mode 100644
index 0000000..c795b05
--- /dev/null
+++ b/apps/giga-wear/common/.gitignore
@@ -0,0 +1 @@
+build
\ No newline at end of file
diff --git a/apps/giga-wear/common/build.gradle.kts b/apps/giga-wear/common/build.gradle.kts
new file mode 100644
index 0000000..cd77565
--- /dev/null
+++ b/apps/giga-wear/common/build.gradle.kts
@@ -0,0 +1,20 @@
+plugins {
+    alias(libs.plugins.convention.kmp)
+    alias(libs.plugins.convention.android.lib)
+    alias(libs.plugins.convention.ktor.client)
+    alias(libs.plugins.convention.compose)
+    alias(libs.plugins.convention.serialization)
+    alias(libs.plugins.convention.koin)
+}
+
+kotlin {
+    sourceSets {
+        commonMain.dependencies {
+            implementation(project(":libs:base"))
+            implementation(project(":libs:http-client"))
+        }
+    }
+    android {
+        namespace = "ru.shadowsparky.gigawear.common"
+    }
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 4dfeb47..289e7dc 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -38,8 +38,9 @@ include(":apps:experimentarium:androidApp")
 include(":apps:experimentarium:shared")
 include(":apps:experimentarium:web")
 
-include(":apps:giga-wear")
 include(":apps:giga-wear:client")
+include(":apps:giga-wear:common")
+include(":apps:giga-wear:backend")
 
 include(":libs:backend-base")
 include(":libs:base")