diff --git a/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/OnUploadCallback.kt b/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/OnUploadCallback.kt
index abd79c93b2b..86c7d065b09 100644
--- a/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/OnUploadCallback.kt
+++ b/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/OnUploadCallback.kt
@@ -1,3 +1,3 @@
 package dev.inmo.micro_utils.ktor.client
 
-typealias OnUploadCallback = suspend (uploaded: Long, count: Long) -> Unit
+typealias OnUploadCallback = suspend (uploaded: Long, count: Long?) -> Unit
diff --git a/ktor/common/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/common/CreateTempFileFromInput.kt b/ktor/common/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/common/CreateTempFileFromInput.kt
index 3ec4ee47bff..d49edd0c0d8 100644
--- a/ktor/common/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/common/CreateTempFileFromInput.kt
+++ b/ktor/common/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/common/CreateTempFileFromInput.kt
@@ -1,10 +1,9 @@
 package dev.inmo.micro_utils.ktor.common
 
-import io.ktor.utils.io.core.*
+import io.ktor.utils.io.core.Input
 import kotlinx.io.asSink
 import java.io.File
 import java.util.UUID
-import kotlin.io.use
 
 fun Input.downloadToTempFile(
     fileName: String = UUID.randomUUID().toString(),
@@ -15,8 +14,8 @@ fun Input.downloadToTempFile(
     fileExtension,
     folder
 ).apply {
-    outputStream().use { output ->
-        this@downloadToTempFile.transferTo(output.asSink())
+    outputStream().use {
+        this@downloadToTempFile.transferTo(it.asSink())
     }
     deleteOnExit()
 }
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/ApplicationCallRespondWithTypeInfo.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/ApplicationCallRespondWithTypeInfo.kt
index 207dde73a63..5c1ce621af9 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/ApplicationCallRespondWithTypeInfo.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/ApplicationCallRespondWithTypeInfo.kt
@@ -1,8 +1,9 @@
 package dev.inmo.micro_utils.ktor.server
 
 import io.ktor.server.application.ApplicationCall
+import io.ktor.server.http.*
 import io.ktor.server.response.responseType
-import io.ktor.util.InternalAPI
+import io.ktor.utils.io.InternalAPI
 import io.ktor.util.reflect.TypeInfo
 
 @InternalAPI
@@ -11,5 +12,5 @@ suspend fun <T : Any> ApplicationCall.respond(
     typeInfo: TypeInfo
 ) {
     response.responseType = typeInfo
-    response.pipeline.execute(this, message as Any)
+    respond(message, typeInfo)
 }
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/DownloadFileItem.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/DownloadFileItem.kt
index 2abdddd2e0c..d2f367644db 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/DownloadFileItem.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/DownloadFileItem.kt
@@ -2,22 +2,19 @@ package dev.inmo.micro_utils.ktor.server
 
 import com.benasher44.uuid.uuid4
 import io.ktor.http.content.PartData
-import io.ktor.utils.io.copyTo
-import io.ktor.utils.io.core.copyTo
-import io.ktor.utils.io.jvm.javaio.*
-import io.ktor.utils.io.streams.*
+import io.ktor.util.cio.*
+import io.ktor.utils.io.*
+import io.ktor.utils.io.jvm.javaio.copyTo
 import kotlinx.io.asSink
 import java.io.File
 
-fun PartData.FileItem.download(target: File) {
-    provider().toInputStream().asInput().use { input ->
-        target.outputStream().use { output ->
-            input.transferTo(output.asSink())
-        }
-    }
+suspend fun PartData.FileItem.download(target: File) {
+    provider().copyAndClose(
+        target.writeChannel()
+    )
 }
 
-fun PartData.FileItem.downloadToTemporalFile(): File {
+suspend fun PartData.FileItem.downloadToTemporalFile(): File {
     val outputFile = File.createTempFile(uuid4().toString(), ".temp").apply {
         deleteOnExit()
     }
@@ -27,8 +24,8 @@ fun PartData.FileItem.downloadToTemporalFile(): File {
 
 fun PartData.BinaryItem.download(target: File) {
     provider().use { input ->
-        target.outputStream().use { output ->
-            input.transferTo(output.asSink())
+        target.outputStream().use {
+            input.transferTo(it.asSink())
         }
     }
 }
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/NewFlowsWebsocket.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/NewFlowsWebsocket.kt
index e51cb579fb3..0240a55fc5e 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/NewFlowsWebsocket.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/NewFlowsWebsocket.kt
@@ -6,7 +6,7 @@ import io.ktor.http.URLProtocol
 import io.ktor.server.application.install
 import io.ktor.server.application.pluginOrNull
 import io.ktor.server.routing.Routing
-import io.ktor.server.routing.*
+import io.ktor.server.routing.application
 import io.ktor.server.websocket.*
 import io.ktor.websocket.send
 import kotlinx.coroutines.flow.Flow
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/StartServer.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/StartServer.kt
index f5d8fc35add..8ad61980db2 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/StartServer.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/StartServer.kt
@@ -1,7 +1,7 @@
 package dev.inmo.micro_utils.ktor.server
 
 import dev.inmo.micro_utils.ktor.server.configurators.KtorApplicationConfigurator
-import io.ktor.server.application.Application
+import io.ktor.server.application.*
 import io.ktor.server.cio.CIO
 import io.ktor.server.cio.CIOApplicationEngine
 import io.ktor.server.engine.*
@@ -11,20 +11,22 @@ fun <TEngine : ApplicationEngine, TConfiguration : ApplicationEngine.Configurati
     engine: ApplicationEngineFactory<TEngine, TConfiguration>,
     host: String = "localhost",
     port: Int = Random.nextInt(1024, 65535),
-    additionalEngineEnvironmentConfigurator: ApplicationEnvironmentBuilder.() -> Unit = {},
+    additionalEngineEnvironmentConfigurator: EngineConnectorBuilder.() -> Unit = {},
     additionalConfigurationConfigurator: TConfiguration.() -> Unit = {},
+    environment: ApplicationEnvironment = applicationEnvironment(),
     block: Application.() -> Unit
-): TEngine = embeddedServer(
+): EmbeddedServer<TEngine, TConfiguration> = embeddedServer<TEngine, TConfiguration>(
     engine,
-    applicationEnvironment {
-        module(block)
+    environment,
+    {
         connector {
             this.host = host
             this.port = port
+            additionalEngineEnvironmentConfigurator()
         }
-        additionalEngineEnvironmentConfigurator()
+        additionalConfigurationConfigurator()
     },
-    additionalConfigurationConfigurator
+    module = block
 )
 
 /**
@@ -35,15 +37,17 @@ fun <TEngine : ApplicationEngine, TConfiguration : ApplicationEngine.Configurati
 fun createKtorServer(
     host: String = "localhost",
     port: Int = Random.nextInt(1024, 65535),
-    additionalEngineEnvironmentConfigurator: ApplicationEnvironmentBuilder.() -> Unit = {},
+    additionalEngineEnvironmentConfigurator: EngineConnectorBuilder.() -> Unit = {},
     additionalConfigurationConfigurator: CIOApplicationEngine.Configuration.() -> Unit = {},
+    environment: ApplicationEnvironment = applicationEnvironment(),
     block: Application.() -> Unit
-): CIOApplicationEngine = createKtorServer(
+): EmbeddedServer<CIOApplicationEngine, CIOApplicationEngine.Configuration> = createKtorServer(
     CIO,
     host,
     port,
     additionalEngineEnvironmentConfigurator,
     additionalConfigurationConfigurator,
+    environment,
     block
 )
 
@@ -51,15 +55,17 @@ fun <TEngine : ApplicationEngine, TConfiguration : ApplicationEngine.Configurati
     engine: ApplicationEngineFactory<TEngine, TConfiguration>,
     host: String = "localhost",
     port: Int = Random.nextInt(1024, 65535),
-    additionalEngineEnvironmentConfigurator: ApplicationEnvironmentBuilder.() -> Unit = {},
+    additionalEngineEnvironmentConfigurator: EngineConnectorBuilder.() -> Unit = {},
     additionalConfigurationConfigurator: TConfiguration.() -> Unit = {},
+    environment: ApplicationEnvironment = applicationEnvironment(),
     configurators: List<KtorApplicationConfigurator>
-): TEngine = createKtorServer(
+): EmbeddedServer<TEngine, TConfiguration> = createKtorServer(
     engine,
     host,
     port,
     additionalEngineEnvironmentConfigurator,
-    additionalConfigurationConfigurator
+    additionalConfigurationConfigurator,
+    environment,
 ) {
     configurators.forEach { it.apply { configure() } }
 }
@@ -73,6 +79,7 @@ fun createKtorServer(
     host: String = "localhost",
     port: Int = Random.nextInt(1024, 65535),
     configurators: List<KtorApplicationConfigurator>,
-    additionalEngineEnvironmentConfigurator: ApplicationEnvironmentBuilder.() -> Unit = {},
+    additionalEngineEnvironmentConfigurator: EngineConnectorBuilder.() -> Unit = {},
     additionalConfigurationConfigurator: CIOApplicationEngine.Configuration.() -> Unit = {},
-): ApplicationEngine = createKtorServer(CIO, host, port, additionalEngineEnvironmentConfigurator, additionalConfigurationConfigurator, configurators)
+    environment: ApplicationEnvironment = applicationEnvironment(),
+): EmbeddedServer<CIOApplicationEngine, CIOApplicationEngine.Configuration> = createKtorServer(CIO, host, port, additionalEngineEnvironmentConfigurator, additionalConfigurationConfigurator, environment, configurators)
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/TemporalFilesRoutingConfigurator.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/TemporalFilesRoutingConfigurator.kt
index 2c5489e3545..dd3e4048d3d 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/TemporalFilesRoutingConfigurator.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/TemporalFilesRoutingConfigurator.kt
@@ -17,6 +17,7 @@ import io.ktor.server.response.respondText
 import io.ktor.server.routing.Routing
 import io.ktor.server.routing.post
 import kotlinx.coroutines.*
+import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
@@ -26,7 +27,10 @@ import java.nio.file.attribute.FileTime
 
 class TemporalFilesRoutingConfigurator(
     private val subpath: String = DefaultTemporalFilesSubPath,
-    private val temporalFilesUtilizer: TemporalFilesUtilizer = TemporalFilesUtilizer
+    private val temporalFilesUtilizer: TemporalFilesUtilizer = TemporalFilesUtilizer,
+    filesFlowReplay: Int = 0,
+    filesFlowExtraBufferCapacity: Int = Int.MAX_VALUE,
+    filesFlowOnBufferOverflow: BufferOverflow = BufferOverflow.SUSPEND
 ) : ApplicationRoutingConfigurator.Element {
     interface TemporalFilesUtilizer {
         fun start(filesMap: MutableMap<TemporalFileId, MPPFile>, filesMutex: Mutex, onNewFileFlow: Flow<TemporalFileId>): Job
@@ -74,7 +78,11 @@ class TemporalFilesRoutingConfigurator(
 
     private val temporalFilesMap = mutableMapOf<TemporalFileId, MPPFile>()
     private val temporalFilesMutex = Mutex()
-    private val filesFlow = MutableSharedFlow<TemporalFileId>()
+    private val filesFlow = MutableSharedFlow<TemporalFileId>(
+        replay = filesFlowReplay,
+        extraBufferCapacity = filesFlowExtraBufferCapacity,
+        onBufferOverflow = filesFlowOnBufferOverflow
+    )
     val utilizerJob = temporalFilesUtilizer.start(temporalFilesMap, temporalFilesMutex, filesFlow.asSharedFlow())
 
     override fun Routing.invoke() {
@@ -111,7 +119,7 @@ class TemporalFilesRoutingConfigurator(
                     temporalFilesMap[fileId] = file
                 }
                 call.respondText(fileId.string)
-                launchSafelyWithoutExceptions { filesFlow.emit(fileId) }
+                filesFlow.emit(fileId)
             } ?: call.respond(HttpStatusCode.BadRequest)
         }
     }
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/UniloadMultipart.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/UniloadMultipart.kt
index 7898092e54d..0bf7828a49b 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/UniloadMultipart.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/UniloadMultipart.kt
@@ -6,6 +6,7 @@ import dev.inmo.micro_utils.ktor.common.downloadToTempFile
 import io.ktor.http.content.*
 import io.ktor.server.application.ApplicationCall
 import io.ktor.server.request.receiveMultipart
+import io.ktor.utils.io.*
 import io.ktor.utils.io.core.*
 import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.isActive
@@ -47,7 +48,7 @@ suspend fun ApplicationCall.uniloadMultipart(
         onBinaryChannelItem
     ) {
         when (it.name) {
-            "bytes" -> resultInput = it.provider()
+            "bytes" -> resultInput = it.provider().readBuffer()
             else -> onCustomFileItem(it)
         }
     }
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationRoutingConfigurator.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationRoutingConfigurator.kt
index a583c9fca88..a9d896e23d0 100644
--- a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationRoutingConfigurator.kt
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationRoutingConfigurator.kt
@@ -2,8 +2,7 @@ package dev.inmo.micro_utils.ktor.server.configurators
 
 import dev.inmo.micro_utils.ktor.server.configurators.ApplicationRoutingConfigurator.Element
 import io.ktor.server.application.*
-import io.ktor.server.routing.Routing
-import io.ktor.server.routing.Routing
+import io.ktor.server.routing.*
 import kotlinx.serialization.Contextual
 import kotlinx.serialization.Serializable
 
@@ -19,9 +18,7 @@ class ApplicationRoutingConfigurator(
     }
 
     override fun Application.configure() {
-        pluginOrNull(Routing) ?.apply {
-            rootInstaller.apply { invoke() }
-        } ?: install(Routing) {
+        routing {
             rootInstaller.apply { invoke() }
         }
     }
diff --git a/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/value/KtorWriteKeyValueRepoClient.kt b/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/value/KtorWriteKeyValueRepoClient.kt
index 12de3b5538a..04548c751ba 100644
--- a/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/value/KtorWriteKeyValueRepoClient.kt
+++ b/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/value/KtorWriteKeyValueRepoClient.kt
@@ -8,7 +8,7 @@ import dev.inmo.micro_utils.repos.ktor.common.key_value.*
 import io.ktor.client.HttpClient
 import io.ktor.client.request.post
 import io.ktor.http.*
-import io.ktor.util.InternalAPI
+import io.ktor.utils.io.InternalAPI
 import io.ktor.util.reflect.TypeInfo
 import io.ktor.util.reflect.typeInfo
 import kotlinx.coroutines.flow.Flow
diff --git a/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/values/KtorWriteKeyValuesRepoClient.kt b/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/values/KtorWriteKeyValuesRepoClient.kt
index 5fe28f0a7af..50225e60d9d 100644
--- a/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/values/KtorWriteKeyValuesRepoClient.kt
+++ b/repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key/values/KtorWriteKeyValuesRepoClient.kt
@@ -8,7 +8,7 @@ import dev.inmo.micro_utils.repos.ktor.common.one_to_many.*
 import io.ktor.client.HttpClient
 import io.ktor.client.request.post
 import io.ktor.http.*
-import io.ktor.util.InternalAPI
+import io.ktor.utils.io.InternalAPI
 import io.ktor.util.reflect.TypeInfo
 import io.ktor.util.reflect.typeInfo
 import kotlinx.coroutines.flow.Flow
diff --git a/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/value/KtorReadKeyValueRepoRoutes.kt b/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/value/KtorReadKeyValueRepoRoutes.kt
index ffab7f81624..f3e0104806a 100644
--- a/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/value/KtorReadKeyValueRepoRoutes.kt
+++ b/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/value/KtorReadKeyValueRepoRoutes.kt
@@ -16,7 +16,7 @@ import io.ktor.server.application.call
 import io.ktor.server.response.respond
 import io.ktor.server.routing.Routing
 import io.ktor.server.routing.get
-import io.ktor.util.InternalAPI
+import io.ktor.utils.io.InternalAPI
 import io.ktor.util.reflect.typeInfo
 import kotlinx.serialization.*
 
diff --git a/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/values/KtorReadKeyValuesRepoRoutes.kt b/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/values/KtorReadKeyValuesRepoRoutes.kt
index 7921f24d817..82df24d1c53 100644
--- a/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/values/KtorReadKeyValuesRepoRoutes.kt
+++ b/repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/key/values/KtorReadKeyValuesRepoRoutes.kt
@@ -14,7 +14,7 @@ import io.ktor.server.application.call
 import io.ktor.server.response.respond
 import io.ktor.server.routing.Routing
 import io.ktor.server.routing.get
-import io.ktor.util.InternalAPI
+import io.ktor.utils.io.InternalAPI
 import io.ktor.util.reflect.typeInfo
 import kotlinx.serialization.*