diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82e3a927..a880a8ae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## [Unreleased]
 ### Added
+- LogManager plugin
 
 ### Changed
 - Kotlin-logging moved from common to JVM and JS. Replaced by console for native.
@@ -9,6 +10,8 @@
 ### Deprecated
 
 ### Removed
+- Common dependency on Kotlin-logging
+- Kotlinx-io fork dependency. Replaced by Ktor-io.
 
 ### Fixed
 
diff --git a/dataforge-context/api/dataforge-context.api b/dataforge-context/api/dataforge-context.api
index baeaad1f..b603c615 100644
--- a/dataforge-context/api/dataforge-context.api
+++ b/dataforge-context/api/dataforge-context.api
@@ -110,14 +110,13 @@ public final class hep/dataforge/context/KLoggingManager$Companion : hep/datafor
 	public synthetic fun invoke (Lhep/dataforge/meta/Meta;Lhep/dataforge/context/Context;)Ljava/lang/Object;
 }
 
-public abstract interface class hep/dataforge/context/LogManager : hep/dataforge/context/Plugin {
+public abstract interface class hep/dataforge/context/LogManager : hep/dataforge/context/Logable, hep/dataforge/context/Plugin {
 	public static final field Companion Lhep/dataforge/context/LogManager$Companion;
 	public static final field DEBUG Ljava/lang/String;
 	public static final field ERROR Ljava/lang/String;
 	public static final field INFO Ljava/lang/String;
 	public static final field TRACE Ljava/lang/String;
 	public static final field WARNING Ljava/lang/String;
-	public abstract fun log (Lhep/dataforge/names/Name;Ljava/lang/String;Lkotlin/jvm/functions/Function0;)V
 }
 
 public final class hep/dataforge/context/LogManager$Companion {
@@ -137,9 +136,24 @@ public final class hep/dataforge/context/LogManager$DefaultImpls {
 }
 
 public final class hep/dataforge/context/LogManagerKt {
+	public static final fun debug (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun debug$default (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun error (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static final fun error (Lhep/dataforge/context/Logable;Ljava/lang/Throwable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun error$default (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static synthetic fun error$default (Lhep/dataforge/context/Logable;Ljava/lang/Throwable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
 	public static final fun getLogger (Lhep/dataforge/context/Context;)Lhep/dataforge/context/LogManager;
-	public static final fun info (Lhep/dataforge/context/LogManager;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
-	public static synthetic fun info$default (Lhep/dataforge/context/LogManager;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun getLogger (Lhep/dataforge/context/ContextAware;)Lhep/dataforge/context/Logable;
+	public static final fun info (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun info$default (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun trace (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun trace$default (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun warn (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun warn$default (Lhep/dataforge/context/Logable;Lhep/dataforge/names/Name;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+}
+
+public abstract interface class hep/dataforge/context/Logable {
+	public abstract fun log (Lhep/dataforge/names/Name;Ljava/lang/String;Lkotlin/jvm/functions/Function0;)V
 }
 
 public abstract interface class hep/dataforge/context/Plugin : hep/dataforge/context/ContextAware, hep/dataforge/meta/MetaRepr, hep/dataforge/misc/Named, hep/dataforge/provider/Provider {
diff --git a/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/Global.kt b/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/Global.kt
index 3d995037..b1b38179 100644
--- a/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/Global.kt
+++ b/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/Global.kt
@@ -7,7 +7,6 @@ import kotlinx.coroutines.SupervisorJob
 import kotlin.coroutines.CoroutineContext
 import kotlin.native.concurrent.ThreadLocal
 
-
 internal expect val globalLogger: LogManager
 
 /**
diff --git a/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/LogManager.kt b/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/LogManager.kt
index 830861b8..032f4e09 100644
--- a/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/LogManager.kt
+++ b/dataforge-context/src/commonMain/kotlin/hep/dataforge/context/LogManager.kt
@@ -1,10 +1,14 @@
 package hep.dataforge.context
 
+import hep.dataforge.misc.Named
 import hep.dataforge.names.Name
+import hep.dataforge.names.plus
 
-public interface LogManager : Plugin {
-
+public interface Logable{
     public fun log(name: Name, tag: String, body: () -> String)
+}
+
+public interface LogManager : Plugin, Logable {
 
     public companion object {
         public const val TRACE: String = "TRACE"
@@ -15,24 +19,40 @@ public interface LogManager : Plugin {
     }
 }
 
-public fun LogManager.info(name: Name = Name.EMPTY, body: () -> String): Unit = log(name,LogManager.INFO,body)
 
+
+public fun Logable.trace(name: Name = Name.EMPTY, body: () -> String): Unit = log(name, LogManager.TRACE, body)
+public fun Logable.info(name: Name = Name.EMPTY, body: () -> String): Unit = log(name, LogManager.INFO, body)
+public fun Logable.debug(name: Name = Name.EMPTY, body: () -> String): Unit = log(name, LogManager.DEBUG, body)
+public fun Logable.warn(name: Name = Name.EMPTY, body: () -> String): Unit = log(name, LogManager.WARNING, body)
+public fun Logable.error(name: Name = Name.EMPTY, body: () -> String): Unit = log(name, LogManager.ERROR, body)
+
+public fun Logable.error(throwable: Throwable?, name: Name = Name.EMPTY, body: () -> String): Unit =
+    log(name, LogManager.ERROR) {
+        buildString {
+            appendLine(body())
+            throwable?.let { appendLine(throwable.stackTraceToString())}
+        }
+    }
+
+/**
+ * Context log manager inherited from parent
+ */
 public val Context.logger: LogManager
     get() = plugins.find(inherit = true) { it is LogManager } as? LogManager ?: Global.logger
 
-
-///**
-// * The logger specific to this context
-// */
-//public val Context.logger: Logger get() = buildLogger(name.toString())
-//
-///**
-// * The logger
-// */
-//public val ContextAware.logger: Logger
-//    get() = if (this is Named) {
-//        context.buildLogger(Path(context.name, this.name).toString())
-//    } else {
-//        context.logger
-//    }
+/**
+ * The named proxy logger for a context member
+ */
+public val ContextAware.logger: Logable
+    get() = if (this is Named) {
+        object :Logable{
+            val contextLog = context.logger
+            override fun log(name: Name, tag: String, body: () -> String) {
+                contextLog.log(this@logger.name + name,tag, body)
+            }
+        }
+    } else {
+        context.logger
+    }
 
diff --git a/dataforge-io/build.gradle.kts b/dataforge-io/build.gradle.kts
index c5292aec..cb5d3c1a 100644
--- a/dataforge-io/build.gradle.kts
+++ b/dataforge-io/build.gradle.kts
@@ -11,14 +11,14 @@ kscience {
     }
 }
 
-val ioVersion by rootProject.extra("0.2.0-npm-dev-11")
+//val ioVersion by rootProject.extra("0.2.0-npm-dev-11")
 
 kotlin {
     sourceSets {
         commonMain {
             dependencies {
                 api(project(":dataforge-context"))
-                api("org.jetbrains.kotlinx:kotlinx-io:$ioVersion")
+                api("io.ktor:ktor-io:${ru.mipt.npm.gradle.KScienceVersions.ktorVersion}")
             }
         }
     }
diff --git a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
index 9a6d38f8..3dbdf635 100644
--- a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
+++ b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
@@ -6,9 +6,10 @@ import hep.dataforge.io.IOFormat.Companion.META_KEY
 import hep.dataforge.io.IOFormat.Companion.NAME_KEY
 import hep.dataforge.meta.Meta
 import hep.dataforge.misc.DFExperimental
-import kotlinx.io.*
-import kotlinx.io.text.readUtf8Line
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
+import io.ktor.utils.io.core.readBytes
+import io.ktor.utils.io.core.readUTF8Line
 
 @DFExperimental
 public class FrontMatterEnvelopeFormat(
@@ -20,7 +21,7 @@ public class FrontMatterEnvelopeFormat(
         var line: String
         var offset = 0u
         do {
-            line = input.readUtf8Line() //?: error("Input does not contain front matter separator")
+            line = input.readUTF8Line() ?: error("Input does not contain front matter separator")
             offset += line.encodeToByteArray().size.toUInt()
         } while (!line.startsWith(SEPARATOR))
 
@@ -31,7 +32,7 @@ public class FrontMatterEnvelopeFormat(
         //TODO replace by preview
         val meta = Binary {
             do {
-                line = input.readUtf8Line()
+                line = input.readSafeUtf8Line()
                 writeUtf8String(line + "\r\n")
                 offset += line.encodeToByteArray().size.toUInt()
             } while (!line.startsWith(SEPARATOR))
@@ -45,7 +46,7 @@ public class FrontMatterEnvelopeFormat(
     override fun readObject(input: Input): Envelope {
         var line: String
         do {
-            line = input.readUtf8Line() //?: error("Input does not contain front matter separator")
+            line = input.readSafeUtf8Line() //?: error("Input does not contain front matter separator")
         } while (!line.startsWith(SEPARATOR))
 
         val readMetaFormat =
@@ -54,12 +55,12 @@ public class FrontMatterEnvelopeFormat(
 
         val meta = Binary {
             do {
-                writeUtf8String(input.readUtf8Line() + "\r\n")
+                writeUtf8String(input.readSafeUtf8Line() + "\r\n")
             } while (!line.startsWith(SEPARATOR))
         }.read {
             readMetaFormat.readMeta(input)
         }
-        val bytes = input.readByteArray()
+        val bytes = input.readBytes()
         val data = bytes.asBinary()
         return SimpleEnvelope(meta, data)
     }
@@ -94,14 +95,12 @@ public class FrontMatterEnvelopeFormat(
             return FrontMatterEnvelopeFormat(context.io, meta)
         }
 
-        override fun peekFormat(io: IOPlugin, input: Input): EnvelopeFormat? {
-            return input.preview {
-                val line = readUtf8Line()
-                return@preview if (line.startsWith("---")) {
-                    invoke()
-                } else {
-                    null
-                }
+        override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? = binary.read {
+            val line = readSafeUtf8Line()
+            return@read if (line.startsWith("---")) {
+                invoke()
+            } else {
+                null
             }
         }
 
diff --git a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/YamlMetaFormat.kt b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/YamlMetaFormat.kt
index 9f5cdda3..ccf38835 100644
--- a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/YamlMetaFormat.kt
+++ b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/hep/dataforge/io/yaml/YamlMetaFormat.kt
@@ -5,6 +5,8 @@ import hep.dataforge.io.IOFormat.Companion.META_KEY
 import hep.dataforge.io.IOFormat.Companion.NAME_KEY
 import hep.dataforge.io.MetaFormat
 import hep.dataforge.io.MetaFormatFactory
+import hep.dataforge.io.readUtf8String
+import hep.dataforge.io.writeUtf8String
 import hep.dataforge.meta.*
 import hep.dataforge.meta.descriptors.ItemDescriptor
 import hep.dataforge.meta.descriptors.NodeDescriptor
@@ -14,10 +16,8 @@ import hep.dataforge.names.withIndex
 import hep.dataforge.values.ListValue
 import hep.dataforge.values.Null
 import hep.dataforge.values.parseValue
-import kotlinx.io.Input
-import kotlinx.io.Output
-import kotlinx.io.text.readUtf8String
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
 import net.mamoe.yamlkt.*
 
 public fun Meta.toYaml(): YamlMap {
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt
new file mode 100644
index 00000000..6450279e
--- /dev/null
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt
@@ -0,0 +1,74 @@
+package hep.dataforge.io
+
+import io.ktor.utils.io.core.*
+import kotlin.math.min
+
+/**
+ * [Binary] represents a fixed-size multi-read byte block, which is not attached to the Input which was used to create it.
+ * The binary could be associated with a resource, but it should guarantee that when someone is trying to read the binary,
+ * this resource is re-acquired.
+ */
+public interface Binary {
+
+    public val size: Int
+
+    /**
+     * Read maximum of [atMost] bytes as input from the binary, starting at [offset]. The generated input is always closed
+     * when leaving scope, so it could not be leaked outside of scope of [block].
+     */
+    public fun <R> read(offset: Int = 0, atMost: Int = size - offset, block: Input.() -> R): R
+
+    public companion object {
+        public val EMPTY: Binary = ByteArrayBinary(ByteArray(0))
+    }
+}
+
+internal class ByteArrayBinary(
+    internal val array: ByteArray,
+    internal val start: Int = 0,
+    override val size: Int = array.size - start,
+) : Binary {
+
+    override fun <R> read(offset: Int, atMost: Int, block: Input.() -> R): R {
+        require(offset >= 0) { "Offset must be positive" }
+        require(offset < array.size) { "Offset $offset is larger than array size" }
+        val input = ByteReadPacket(
+            array,
+            offset + start,
+            min(atMost, size - offset)
+        )
+        return input.use(block)
+    }
+}
+
+public fun ByteArray.asBinary(): Binary = ByteArrayBinary(this)
+
+/**
+ * Produce a [buildByteArray] representing an exact copy of this [Binary]
+ */
+public fun Binary.toByteArray(): ByteArray = if (this is ByteArrayBinary) {
+    array.copyOf() // TODO do we need to ensure data safety here?
+} else {
+    read {
+        readBytes()
+    }
+}
+
+public fun Input.readBinary(size: Int): Binary {
+    val array = readBytes(size)
+    return ByteArrayBinary(array)
+}
+
+/**
+ * Direct write of binary to the output. Returns the number of bytes written
+ */
+public fun Output.writeBinary(binary: Binary): Int {
+    return if (binary is ByteArrayBinary) {
+        writeFully(binary.array, binary.start, binary.start + binary.size)
+        binary.size
+    } else {
+        binary.read {
+            copyTo(this@writeBinary).toInt()
+        }
+    }
+}
\ No newline at end of file
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/BinaryMetaFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/BinaryMetaFormat.kt
index 43ee98b8..04689744 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/BinaryMetaFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/BinaryMetaFormat.kt
@@ -4,9 +4,7 @@ import hep.dataforge.context.Context
 import hep.dataforge.meta.*
 import hep.dataforge.meta.descriptors.NodeDescriptor
 import hep.dataforge.values.*
-import kotlinx.io.*
-import kotlinx.io.text.readUtf8String
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.*
 
 /**
  * A DataForge-specific simplified binary format for meta
@@ -26,7 +24,7 @@ public object BinaryMetaFormat : MetaFormat, MetaFormatFactory {
 
     private fun Output.writeString(str: String) {
         writeInt(str.length)
-        writeUtf8String(str)
+        writeFully(str.encodeToByteArray())
     }
 
     public fun Output.writeValue(value: Value): Unit = when (value.type) {
@@ -76,8 +74,8 @@ public object BinaryMetaFormat : MetaFormat, MetaFormatFactory {
     }
 
     override fun writeMeta(
-        output: kotlinx.io.Output,
-        meta: hep.dataforge.meta.Meta,
+        output: Output,
+        meta: Meta,
         descriptor: hep.dataforge.meta.descriptors.NodeDescriptor?,
     ) {
         output.writeChar('M')
@@ -97,7 +95,8 @@ public object BinaryMetaFormat : MetaFormat, MetaFormatFactory {
 
     private fun Input.readString(): String {
         val length = readInt()
-        return readUtf8String(length)
+        val array = readBytes(length)
+        return array.decodeToString()
     }
 
     @Suppress("UNCHECKED_CAST")
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Envelope.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Envelope.kt
index 123da62c..cad2666f 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Envelope.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Envelope.kt
@@ -7,7 +7,6 @@ import hep.dataforge.meta.string
 import hep.dataforge.names.Name
 import hep.dataforge.names.asName
 import hep.dataforge.names.plus
-import kotlinx.io.Binary
 
 public interface Envelope {
     public val meta: Meta
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeBuilder.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeBuilder.kt
index 20710198..77d7df61 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeBuilder.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeBuilder.kt
@@ -1,7 +1,7 @@
 package hep.dataforge.io
 
 import hep.dataforge.meta.*
-import kotlinx.io.*
+import io.ktor.utils.io.core.Output
 
 public class EnvelopeBuilder : Envelope {
     private val metaBuilder = MetaBuilder()
@@ -33,11 +33,8 @@ public class EnvelopeBuilder : Envelope {
     /**
      * Construct a data binary from given builder
      */
-    @OptIn(ExperimentalIoApi::class)
     public fun data(block: Output.() -> Unit) {
-        val arrayBuilder = ByteArrayOutput()
-        arrayBuilder.block()
-        data = arrayBuilder.toByteArray().asBinary()
+        data = buildByteArray { block() }.asBinary()
     }
 
     public fun seal(): Envelope = SimpleEnvelope(metaBuilder.seal(), data)
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeFormat.kt
index 085c1cde..55527be1 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeFormat.kt
@@ -6,8 +6,8 @@ import hep.dataforge.meta.Meta
 import hep.dataforge.misc.Type
 import hep.dataforge.names.Name
 import hep.dataforge.names.asName
-import kotlinx.io.Input
-import kotlinx.io.Output
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
 import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
@@ -48,7 +48,7 @@ public interface EnvelopeFormatFactory : IOFormatFactory<Envelope>, EnvelopeForm
      * Try to infer specific format from input and return null if the attempt is failed.
      * This method does **not** return Input into initial state.
      */
-    public fun peekFormat(io: IOPlugin, input: Input): EnvelopeFormat?
+    public fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat?
 
     public companion object {
         public const val ENVELOPE_FORMAT_TYPE: String = "io.format.envelope"
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeParts.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeParts.kt
index 45bfd988..9aa68b59 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeParts.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/EnvelopeParts.kt
@@ -11,8 +11,6 @@ import hep.dataforge.meta.*
 import hep.dataforge.names.asName
 import hep.dataforge.names.plus
 import hep.dataforge.names.toName
-import kotlinx.io.Binary
-import kotlinx.io.writeBinary
 
 private class PartDescriptor : Scheme() {
     var offset by int(0)
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/IOFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/IOFormat.kt
index 6ba7d6e3..163e354a 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/IOFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/IOFormat.kt
@@ -12,9 +12,7 @@ import hep.dataforge.misc.Type
 import hep.dataforge.names.Name
 import hep.dataforge.names.asName
 import hep.dataforge.values.Value
-import kotlinx.io.*
-import kotlinx.io.buffer.Buffer
-import kotlinx.io.pool.ObjectPool
+import io.ktor.utils.io.core.*
 import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
@@ -35,6 +33,10 @@ public interface IOFormat<T : Any> : MetaRepr {
 
 public fun <T : Any> Input.readWith(format: IOFormat<T>): T = format.readObject(this@readWith)
 
+public fun <T: Any> IOFormat<T>.readObject(binary: Binary): T = binary.read {
+    readObject(this)
+}
+
 /**
  * Read given binary as object using given format
  */
@@ -73,15 +75,15 @@ public inline fun <reified T : Any> IOFormat.Companion.listOf(
 
 }
 
-public fun ObjectPool<Buffer>.fill(block: Buffer.() -> Unit): Buffer {
-    val buffer = borrow()
-    return try {
-        buffer.apply(block)
-    } catch (ex: Exception) {
-        //recycle(buffer)
-        throw ex
-    }
-}
+//public fun ObjectPool<Buffer>.fill(block: Buffer.() -> Unit): Buffer {
+//    val buffer = borrow()
+//    return try {
+//        buffer.apply(block)
+//    } catch (ex: Exception) {
+//        //recycle(buffer)
+//        throw ex
+//    }
+//}
 
 @Type(IO_FORMAT_TYPE)
 public interface IOFormatFactory<T : Any> : Factory<IOFormat<T>>, Named, MetaRepr {
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/JsonMetaFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/JsonMetaFormat.kt
index 255a08e5..667c2d60 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/JsonMetaFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/JsonMetaFormat.kt
@@ -10,10 +10,9 @@ import hep.dataforge.meta.descriptors.NodeDescriptor
 import hep.dataforge.meta.node
 import hep.dataforge.meta.toJson
 import hep.dataforge.meta.toMetaItem
-import kotlinx.io.Input
-import kotlinx.io.Output
-import kotlinx.io.text.readUtf8String
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
+
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonObject
 import kotlin.reflect.KType
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/MetaFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/MetaFormat.kt
index bb59e1a0..673b63d2 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/MetaFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/MetaFormat.kt
@@ -8,10 +8,11 @@ import hep.dataforge.misc.Type
 import hep.dataforge.names.Name
 import hep.dataforge.names.asName
 import hep.dataforge.names.plus
-import kotlinx.io.ByteArrayInput
-import kotlinx.io.Input
-import kotlinx.io.Output
-import kotlinx.io.use
+import io.ktor.utils.io.core.ByteReadPacket
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
+import io.ktor.utils.io.core.use
+
 import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
@@ -54,13 +55,15 @@ public interface MetaFormatFactory : IOFormatFactory<Meta>, MetaFormat {
 }
 
 public fun Meta.toString(format: MetaFormat): String = buildByteArray {
-    format.run { writeObject(this@buildByteArray, this@toString) }
+    format.run {
+        writeObject(this@buildByteArray, this@toString)
+    }
 }.decodeToString()
 
 public fun Meta.toString(formatFactory: MetaFormatFactory): String = toString(formatFactory())
 
 public fun MetaFormat.parse(str: String): Meta {
-    return ByteArrayInput(str.encodeToByteArray()).use { readObject(it) }
+    return ByteReadPacket(str.encodeToByteArray()).use { readObject(it) }
 }
 
 public fun MetaFormatFactory.parse(str: String, formatMeta: Meta): Meta = invoke(formatMeta).parse(str)
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaggedEnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaggedEnvelopeFormat.kt
index 389c5054..40824fd8 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaggedEnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaggedEnvelopeFormat.kt
@@ -10,7 +10,7 @@ import hep.dataforge.meta.string
 import hep.dataforge.names.Name
 import hep.dataforge.names.plus
 import hep.dataforge.names.toName
-import kotlinx.io.*
+import io.ktor.utils.io.core.*
 
 /**
  * A streaming-friendly envelope format with a short binary tag.
@@ -57,7 +57,6 @@ public class TaggedEnvelopeFormat(
         envelope.data?.let {
             output.writeBinary(it)
         }
-        output.flush()
     }
 
     /**
@@ -72,7 +71,9 @@ public class TaggedEnvelopeFormat(
         val metaFormat = io.resolveMetaFormat(tag.metaFormatKey)
             ?: error("Meta format with key ${tag.metaFormatKey} not found")
 
-        val meta: Meta = metaFormat.readObject(input.limit(tag.metaSize.toInt()))
+        val metaBinary = input.readBinary(tag.metaSize.toInt())
+
+        val meta: Meta = metaFormat.readObject(metaBinary)
 
         val data = input.readBinary(tag.dataSize.toInt())
 
@@ -85,7 +86,9 @@ public class TaggedEnvelopeFormat(
         val metaFormat = io.resolveMetaFormat(tag.metaFormatKey)
             ?: error("Meta format with key ${tag.metaFormatKey} not found")
 
-        val meta: Meta = metaFormat.readObject(input.limit(tag.metaSize.toInt()))
+        val metaBinary = input.readBinary(tag.metaSize.toInt())
+
+        val meta: Meta = metaFormat.readObject(metaBinary)
 
 
         return PartialEnvelope(meta, version.tagSize + tag.metaSize, tag.dataSize)
@@ -143,11 +146,11 @@ public class TaggedEnvelopeFormat(
             return Tag(metaFormatKey, metaLength, dataLength)
         }
 
-        override fun peekFormat(io: IOPlugin, input: Input): EnvelopeFormat? {
+        override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? {
             return try {
-                input.preview {
+                binary.read{
                     val header = readRawString(6)
-                    return@preview when (header.substring(2..5)) {
+                    return@read when (header.substring(2..5)) {
                         VERSION.DF02.name -> TaggedEnvelopeFormat(io, VERSION.DF02)
                         VERSION.DF03.name -> TaggedEnvelopeFormat(io, VERSION.DF03)
                         else -> null
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaglessEnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaglessEnvelopeFormat.kt
index f89f9bbb..5de70105 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaglessEnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/TaglessEnvelopeFormat.kt
@@ -9,9 +9,7 @@ import hep.dataforge.meta.isEmpty
 import hep.dataforge.meta.string
 import hep.dataforge.names.Name
 import hep.dataforge.names.asName
-import kotlinx.io.*
-import kotlinx.io.text.readUtf8Line
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.*
 import kotlin.collections.set
 
 /**
@@ -27,7 +25,7 @@ public class TaglessEnvelopeFormat(
     private val dataStart = meta[DATA_START_PROPERTY].string ?: DEFAULT_DATA_START
 
     private fun Output.writeProperty(key: String, value: Any) {
-        writeUtf8String("#? $key: $value;\r\n")
+        writeFully("#? $key: $value;\r\n".encodeToByteArray())
     }
 
     override fun writeEnvelope(
@@ -69,7 +67,7 @@ public class TaglessEnvelopeFormat(
     override fun readObject(input: Input): Envelope {
         var line: String
         do {
-            line = input.readUtf8Line() // ?: error("Input does not contain tagless envelope header")
+            line = input.readSafeUtf8Line() // ?: error("Input does not contain tagless envelope header")
         } while (!line.startsWith(TAGLESS_ENVELOPE_HEADER))
         val properties = HashMap<String, String>()
 
@@ -82,8 +80,8 @@ public class TaglessEnvelopeFormat(
                 properties[key] = value
             }
             //If can't read line, return envelope without data
-            if (input.exhausted()) return SimpleEnvelope(Meta.EMPTY, null)
-            line = input.readUtf8Line()
+            if (input.endOfInput) return SimpleEnvelope(Meta.EMPTY, null)
+            line = input.readSafeUtf8Line()
         }
 
         var meta: Meta = Meta.EMPTY
@@ -92,7 +90,7 @@ public class TaglessEnvelopeFormat(
             val metaFormat = properties[META_TYPE_PROPERTY]?.let { io.resolveMetaFormat(it) } ?: JsonMetaFormat
             val metaSize = properties[META_LENGTH_PROPERTY]?.toInt()
             meta = if (metaSize != null) {
-                metaFormat.readObject(input.limit(metaSize))
+                metaFormat.readObject(input.readBinary(metaSize))
             } else {
                 metaFormat.readObject(input)
             }
@@ -100,14 +98,14 @@ public class TaglessEnvelopeFormat(
 
         do {
             try {
-                line = input.readUtf8Line()
+                line = input.readSafeUtf8Line()
             } catch (ex: EOFException) {
                 //returning an Envelope without data if end of input is reached
                 return SimpleEnvelope(meta, null)
             }
         } while (!line.startsWith(dataStart))
 
-        val data: Binary? = if (properties.containsKey(DATA_LENGTH_PROPERTY)) {
+        val data: Binary = if (properties.containsKey(DATA_LENGTH_PROPERTY)) {
             input.readBinary(properties[DATA_LENGTH_PROPERTY]!!.toInt())
 //            val bytes = ByteArray(properties[DATA_LENGTH_PROPERTY]!!.toInt())
 //            readByteArray(bytes)
@@ -125,7 +123,7 @@ public class TaglessEnvelopeFormat(
         var offset = 0u
         var line: String
         do {
-            line = input.readUtf8Line()// ?: error("Input does not contain tagless envelope header")
+            line = input.readSafeUtf8Line()// ?: error("Input does not contain tagless envelope header")
             offset += line.encodeToByteArray().size.toUInt()
         } while (!line.startsWith(TAGLESS_ENVELOPE_HEADER))
         val properties = HashMap<String, String>()
@@ -139,7 +137,7 @@ public class TaglessEnvelopeFormat(
                 properties[key] = value
             }
             try {
-                line = input.readUtf8Line()
+                line = input.readSafeUtf8Line()
                 offset += line.encodeToByteArray().size.toUInt()
             } catch (ex: EOFException) {
                 return PartialEnvelope(Meta.EMPTY, offset.toUInt(), 0.toULong())
@@ -153,14 +151,14 @@ public class TaglessEnvelopeFormat(
             val metaSize = properties[META_LENGTH_PROPERTY]?.toInt()
             meta = if (metaSize != null) {
                 offset += metaSize.toUInt()
-                metaFormat.readObject(input.limit(metaSize))
+                metaFormat.readObject(input.readBinary(metaSize))
             } else {
                 error("Can't partially read an envelope with undefined meta size")
             }
         }
 
         do {
-            line = input.readUtf8Line() //?: return PartialEnvelope(Meta.EMPTY, offset.toUInt(), 0.toULong())
+            line = input.readSafeUtf8Line() //?: return PartialEnvelope(Meta.EMPTY, offset.toUInt(), 0.toULong())
             offset += line.encodeToByteArray().size.toUInt()
             //returning an Envelope without data if end of input is reached
         } while (!line.startsWith(dataStart))
@@ -220,11 +218,11 @@ public class TaglessEnvelopeFormat(
 
         override fun readObject(input: Input): Envelope = default.readObject(input)
 
-        override fun peekFormat(io: IOPlugin, input: Input): EnvelopeFormat? {
+        override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? {
             return try {
-                input.preview {
+                binary.read {
                     val string = readRawString(TAGLESS_ENVELOPE_HEADER.length)
-                    return@preview if (string == TAGLESS_ENVELOPE_HEADER) {
+                    return@read if (string == TAGLESS_ENVELOPE_HEADER) {
                         TaglessEnvelopeFormat(io)
                     } else {
                         null
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/ioMisc.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/ioMisc.kt
index 283f7638..ade64e28 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/ioMisc.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/ioMisc.kt
@@ -1,21 +1,33 @@
 package hep.dataforge.io
 
-import kotlinx.io.*
+import io.ktor.utils.io.charsets.Charsets
+import io.ktor.utils.io.charsets.decodeExactBytes
+import io.ktor.utils.io.core.*
 import kotlin.math.min
 
 public fun Output.writeRawString(str: String) {
-    str.forEach { writeByte(it.toByte()) }
+    writeFully(str.toByteArray(Charsets.ISO_8859_1))
 }
 
+public fun Output.writeUtf8String(str: String) {
+    writeFully(str.encodeToByteArray())
+}
+
+@OptIn(ExperimentalIoApi::class)
 public fun Input.readRawString(size: Int): String {
-    val array = CharArray(size) { readByte().toChar() }
-    return array.concatToString()
+    return Charsets.ISO_8859_1.newDecoder().decodeExactBytes(this, size)
 }
 
-public inline fun buildByteArray(expectedSize: Int = 16, block: Output.() -> Unit): ByteArray =
-    ByteArrayOutput(expectedSize).apply(block).toByteArray()
+public fun Input.readUtf8String(): String = readBytes().decodeToString()
+
+public fun Input.readSafeUtf8Line(): String = readUTF8Line() ?: error("Line not found")
+
+public inline fun buildByteArray(expectedSize: Int = 16, block: Output.() -> Unit): ByteArray {
+    val builder = BytePacketBuilder(expectedSize)
+    builder.block()
+    return builder.build().readBytes()
+}
 
-@Suppress("FunctionName")
 public inline fun Binary(expectedSize: Int = 16, block: Output.() -> Unit): Binary =
     buildByteArray(expectedSize, block).asBinary()
 
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/BinaryTest.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/BinaryTest.kt
index 157b695f..d613469a 100644
--- a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/BinaryTest.kt
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/BinaryTest.kt
@@ -1,8 +1,6 @@
 package hep.dataforge.io
 
-import kotlinx.io.asBinary
-import kotlinx.io.readByte
-import kotlinx.io.readInt
+import io.ktor.utils.io.core.readInt
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/EnvelopeFormatTest.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/EnvelopeFormatTest.kt
index 2ce87c19..74fe5a03 100644
--- a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/EnvelopeFormatTest.kt
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/EnvelopeFormatTest.kt
@@ -1,7 +1,7 @@
 package hep.dataforge.io
 
-import kotlinx.io.readDouble
-import kotlinx.io.writeDouble
+import io.ktor.utils.io.core.readDouble
+import io.ktor.utils.io.core.writeDouble
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/IOTest.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/IOTest.kt
new file mode 100644
index 00000000..b82c3f79
--- /dev/null
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/IOTest.kt
@@ -0,0 +1,17 @@
+package hep.dataforge.io
+
+import io.ktor.utils.io.core.ByteReadPacket
+import io.ktor.utils.io.core.readBytes
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class IOTest {
+    @Test
+    fun readBytes() {
+        val bytes = ByteArray(8) { it.toByte() }
+        val input = ByteReadPacket(bytes)
+        val first = input.readBytes(4)
+        val second = input.readBytes(4)
+        assertEquals(4.toByte(), second[0])
+    }
+}
\ No newline at end of file
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MetaFormatTest.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MetaFormatTest.kt
index 9e71a907..5e970c35 100644
--- a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MetaFormatTest.kt
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MetaFormatTest.kt
@@ -4,7 +4,7 @@ import hep.dataforge.meta.*
 import hep.dataforge.meta.JsonMeta.Companion.JSON_ARRAY_KEY
 import hep.dataforge.values.ListValue
 import hep.dataforge.values.number
-import kotlinx.io.asBinary
+
 import kotlinx.serialization.json.*
 import kotlin.test.Test
 import kotlin.test.assertEquals
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MultipartTest.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MultipartTest.kt
index e511a472..c26d30e9 100644
--- a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MultipartTest.kt
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/MultipartTest.kt
@@ -4,7 +4,6 @@ import hep.dataforge.context.Global
 import hep.dataforge.meta.get
 import hep.dataforge.meta.int
 import hep.dataforge.misc.DFExperimental
-import kotlinx.io.text.writeUtf8String
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertTrue
diff --git a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/ioTestUtils.kt b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/ioTestUtils.kt
index 55831f03..377cb62a 100644
--- a/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/ioTestUtils.kt
+++ b/dataforge-io/src/commonTest/kotlin/hep/dataforge/io/ioTestUtils.kt
@@ -1,7 +1,12 @@
 package hep.dataforge.io
 
-import kotlinx.io.ByteArrayInput
-import kotlinx.io.use
+import io.ktor.utils.io.core.ByteReadPacket
+import io.ktor.utils.io.core.use
 
-fun <T : Any> IOFormat<T>.writeToByteArray(obj: T): ByteArray = buildByteArray { writeObject(this, obj) }
-fun <T : Any> IOFormat<T>.readFromByteArray(array: ByteArray): T = ByteArrayInput(array).use { readObject(it) }
\ No newline at end of file
+
+fun <T : Any> IOFormat<T>.writeToByteArray(obj: T): ByteArray = buildByteArray {
+    writeObject(this, obj)
+}
+fun <T : Any> IOFormat<T>.readFromByteArray(array: ByteArray): T = ByteReadPacket(array).use {
+    readObject(it)
+}
\ No newline at end of file
diff --git a/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/fileIO.kt b/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/fileIO.kt
index 54cf6b2c..16a6d0fc 100644
--- a/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/fileIO.kt
+++ b/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/fileIO.kt
@@ -4,14 +4,39 @@ import hep.dataforge.meta.Meta
 import hep.dataforge.meta.descriptors.NodeDescriptor
 import hep.dataforge.meta.isEmpty
 import hep.dataforge.misc.DFExperimental
-import kotlinx.io.*
+import io.ktor.utils.io.core.*
+import io.ktor.utils.io.streams.asOutput
 import java.nio.file.Files
 import java.nio.file.Path
 import java.nio.file.StandardOpenOption
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.inputStream
+import kotlin.math.min
 import kotlin.reflect.full.isSupertypeOf
 import kotlin.reflect.typeOf
 import kotlin.streams.asSequence
 
+
+internal class PathBinary(
+    private val path: Path,
+    private val fileOffset: Int = 0,
+    override val size: Int = Files.size(path).toInt() - fileOffset,
+) : Binary {
+
+    @OptIn(ExperimentalPathApi::class)
+    override fun <R> read(offset: Int, atMost: Int, block: Input.() -> R): R {
+        val actualOffset = offset + fileOffset
+        val actualSize = min(atMost, size - offset)
+        val array = path.inputStream().use {
+            it.skip(actualOffset.toLong())
+            it.readNBytes(actualSize)
+        }
+        return ByteReadPacket(array).block()
+    }
+}
+
+public fun Path.asBinary(): Binary = PathBinary(this)
+
 public fun <R> Path.read(block: Input.() -> R): R = asBinary().read(block = block)
 
 /**
@@ -46,11 +71,13 @@ public fun Path.rewrite(block: Output.() -> Unit): Unit {
 
 public fun Path.readEnvelope(format: EnvelopeFormat): Envelope {
     val partialEnvelope: PartialEnvelope = asBinary().read {
-        format.run { readPartial(this@read) }
+        format.run {
+            readPartial(this@read)
+        }
     }
     val offset: Int = partialEnvelope.dataOffset.toInt()
     val size: Int = partialEnvelope.dataSize?.toInt() ?: (Files.size(this).toInt() - offset)
-    val binary = FileBinary(this, offset, size)
+    val binary = PathBinary(this, offset, size)
     return SimpleEnvelope(partialEnvelope.meta, binary)
 }
 
@@ -60,7 +87,7 @@ public fun Path.readEnvelope(format: EnvelopeFormat): Envelope {
 @Suppress("UNCHECKED_CAST")
 @DFExperimental
 public inline fun <reified T : Any> IOPlugin.resolveIOFormat(): IOFormat<T>? {
-    return ioFormatFactories.find { it.type.isSupertypeOf(typeOf<T>())} as IOFormat<T>?
+    return ioFormatFactories.find { it.type.isSupertypeOf(typeOf<T>()) } as IOFormat<T>?
 }
 
 /**
@@ -119,9 +146,7 @@ public fun IOPlugin.writeMetaFile(
 public fun IOPlugin.peekFileEnvelopeFormat(path: Path): EnvelopeFormat? {
     val binary = path.asBinary()
     val formats = envelopeFormatFactories.mapNotNull { factory ->
-        binary.read {
-            factory.peekFormat(this@peekFileEnvelopeFormat, this@read)
-        }
+        factory.peekFormat(this@peekFileEnvelopeFormat, binary)
     }
 
     return when (formats.size) {
@@ -231,7 +256,7 @@ public fun IOPlugin.writeEnvelopeDirectory(
     dataFile.write {
         envelope.data?.read {
             val copied = copyTo(this@write)
-            if (copied != envelope.data?.size) {
+            if (copied != envelope.data?.size?.toLong()) {
                 error("The number of copied bytes does not equal data size")
             }
         }
diff --git a/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/streamsIO.kt b/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/streamsIO.kt
index ff392552..5b7262ea 100644
--- a/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/streamsIO.kt
+++ b/dataforge-io/src/jvmMain/kotlin/hep/dataforge/io/streamsIO.kt
@@ -1,45 +1,40 @@
 package hep.dataforge.io
 
-import kotlinx.io.*
-import kotlinx.io.buffer.Buffer
-import kotlinx.io.buffer.set
-import java.io.InputStream
-import java.io.OutputStream
-
-private class BlockingStreamInput(val source: InputStream) : Input() {
-    override fun closeSource() {
-        source.close()
-    }
-
-    override fun fill(buffer: Buffer, startIndex: Int, endIndex: Int): Int {
-        while (source.available() == 0) {
-            //block until input is available
-        }
-        // Zero-copy attempt
-        if (buffer.buffer.hasArray()) {
-            val result = source.read(buffer.buffer.array(), startIndex, endIndex - startIndex)
-            return result.coerceAtLeast(0) // -1 when IS is closed
-        }
-
-        for (i in startIndex until endIndex) {
-            val byte = source.read()
-            if (byte == -1) return (i - startIndex)
-            buffer[i] = byte.toByte()
-        }
-        return endIndex - startIndex
-    }
-}
-
-public fun <R> InputStream.read(size: Int, block: Input.() -> R): R {
-    val buffer = ByteArray(size)
-    read(buffer)
-    return buffer.asBinary().read(block = block)
-}
-
-public fun <R> InputStream.read(block: Input.() -> R): R = asInput().block()
-
-public fun <R> InputStream.readBlocking(block: Input.() -> R): R = BlockingStreamInput(this).block()
-
-public inline fun OutputStream.write(block: Output.() -> Unit) {
-    asOutput().block()
-}
\ No newline at end of file
+//
+//private class BlockingStreamInput(val source: InputStream) : AbstractInput() {
+//    override fun closeSource() {
+//        source.close()
+//    }
+//
+//    override fun fill(destination: Memory, offset: Int, length: Int): Int {
+//        while (source.available() == 0) {
+//            //block until input is available
+//        }
+//        // Zero-copy attempt
+//        if (buffer.buffer.hasArray()) {
+//            val result = source.read(buffer.buffer.array(), startIndex, endIndex - startIndex)
+//            return result.coerceAtLeast(0) // -1 when IS is closed
+//        }
+//
+//        for (i in startIndex until endIndex) {
+//            val byte = source.read()
+//            if (byte == -1) return (i - startIndex)
+//            buffer[i] = byte.toByte()
+//        }
+//        return endIndex - startIndex
+//    }
+//}
+//
+//public fun <R> InputStream.read(size: Int, block: Input.() -> R): R {
+//    val buffer = ByteArray(size)
+//    read(buffer)
+//    return buffer.asBinary().read(block = block)
+//}
+//
+//public fun <R> InputStream.read(block: Input.() -> R): R = asInput().block()
+//
+//public fun <R> InputStream.readBlocking(block: Input.() -> R): R = BlockingStreamInput(this).block()
+//
+//public inline fun OutputStream.write(block: Output.() -> Unit) {
+//    asOutput().block()
+//}
\ No newline at end of file
diff --git a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileBinaryTest.kt b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileBinaryTest.kt
index 8bfefd6d..8fe947d2 100644
--- a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileBinaryTest.kt
+++ b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileBinaryTest.kt
@@ -2,9 +2,7 @@ package hep.dataforge.io
 
 import hep.dataforge.context.Global
 import hep.dataforge.misc.DFExperimental
-import kotlinx.io.asBinary
-import kotlinx.io.toByteArray
-import kotlinx.io.writeDouble
+import io.ktor.utils.io.core.writeDouble
 import java.nio.file.Files
 import kotlin.test.Test
 import kotlin.test.assertEquals
diff --git a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
index fba3ed8e..d1ec8147 100644
--- a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
+++ b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
@@ -2,7 +2,7 @@ package hep.dataforge.io
 
 import hep.dataforge.context.Global
 import hep.dataforge.misc.DFExperimental
-import kotlinx.io.writeDouble
+import io.ktor.utils.io.core.writeDouble
 import java.nio.file.Files
 import kotlin.test.Test
 import kotlin.test.assertTrue
@@ -19,7 +19,6 @@ class FileEnvelopeTest {
         dataID = "myData" // добавил только что
         data {
             writeDouble(16.7)
-
         }
     }
 
diff --git a/dataforge-scripting/src/jvmMain/kotlin/hep/dataforge/scripting/Builders.kt b/dataforge-scripting/src/jvmMain/kotlin/hep/dataforge/scripting/Builders.kt
index 1842ba45..7628293b 100644
--- a/dataforge-scripting/src/jvmMain/kotlin/hep/dataforge/scripting/Builders.kt
+++ b/dataforge-scripting/src/jvmMain/kotlin/hep/dataforge/scripting/Builders.kt
@@ -1,8 +1,6 @@
 package hep.dataforge.scripting
 
-import hep.dataforge.context.Context
-import hep.dataforge.context.Global
-import hep.dataforge.context.logger
+import hep.dataforge.context.*
 import hep.dataforge.workspace.Workspace
 import hep.dataforge.workspace.WorkspaceBuilder
 import java.io.File
@@ -44,7 +42,7 @@ public object Builders {
                         error(scriptDiagnostic.toString())
                     }
                     ScriptDiagnostic.Severity.WARNING -> context.logger.warn { scriptDiagnostic.toString() }
-                    ScriptDiagnostic.Severity.INFO -> context.logger.info { scriptDiagnostic.toString() }
+                    ScriptDiagnostic.Severity.INFO -> context.logger.info {  scriptDiagnostic.toString() }
                     ScriptDiagnostic.Severity.DEBUG -> context.logger.debug { scriptDiagnostic.toString() }
                 }
             }
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/TextRows.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/TextRows.kt
index 0ef003c4..2bb99e8e 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/TextRows.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/TextRows.kt
@@ -1,23 +1,18 @@
 package hep.dataforge.tables.io
 
+import hep.dataforge.io.Binary
+import hep.dataforge.io.readSafeUtf8Line
+import hep.dataforge.io.writeUtf8String
 import hep.dataforge.tables.*
 import hep.dataforge.values.*
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.collect
-import kotlinx.coroutines.flow.flow
-import kotlinx.coroutines.flow.toList
-import kotlinx.io.Binary
-import kotlinx.io.ExperimentalIoApi
-import kotlinx.io.Output
-import kotlinx.io.text.forEachUtf8Line
-import kotlinx.io.text.readUtf8Line
-import kotlinx.io.text.readUtf8StringUntilDelimiter
-import kotlinx.io.text.writeUtf8String
+import io.ktor.utils.io.core.Output
+import io.ktor.utils.io.core.readBytes
+import kotlinx.coroutines.flow.*
 
 /**
  * Read a lin as a fixed width [Row]
  */
-private fun readLine(header: ValueTableHeader, line: String): Row<Value> {
+private fun readRow(header: ValueTableHeader, line: String): Row<Value> {
     val values = line.trim().split("\\s+".toRegex()).map { it.lazyParseValue() }
 
     if (values.size == header.size) {
@@ -31,32 +26,45 @@ private fun readLine(header: ValueTableHeader, line: String): Row<Value> {
 /**
  * Finite or infinite [Rows] created from a fixed width text binary
  */
-@ExperimentalIoApi
 public class TextRows(override val headers: ValueTableHeader, private val binary: Binary) : Rows<Value> {
 
     /**
      * A flow of indexes of string start offsets ignoring empty strings
      */
     public fun indexFlow(): Flow<Int> = binary.read {
-        var counter: Int = 0
-        flow {
-            val string = readUtf8StringUntilDelimiter('\n')
-            counter += string.length
-            if (!string.isBlank()) {
-                emit(counter)
-            }
-        }
+        //TODO replace by line reader
+        val text = readBytes().decodeToString()
+        text.lineSequence()
+            .map { it.trim() }
+            .filter { it.isNotEmpty() }
+            .scan(0) { acc, str -> acc + str.length }.asFlow()
+//        var counter: Int = 0
+//        flow {
+//            do {
+//                val line = readUTF8Line()
+//                counter += line?.length ?: 0
+//                if (!line.isNullOrBlank()) {
+//                    emit(counter)
+//                }
+//            } while (!endOfInput)
+//        }
     }
 
     override fun rowFlow(): Flow<Row<Value>> = binary.read {
-        flow {
-            forEachUtf8Line { line ->
-                if (line.isNotBlank()) {
-                    val row = readLine(headers, line)
-                    emit(row)
-                }
-            }
-        }
+        val text = readBytes().decodeToString()
+        text.lineSequence()
+            .map { it.trim() }
+            .filter { it.isNotEmpty() }
+            .map { readRow(headers, it) }.asFlow()
+//        flow {
+//            do {
+//                val line = readUTF8Line()
+//                if (!line.isNullOrBlank()) {
+//                    val row = readRow(headers, line)
+//                    emit(row)
+//                }
+//            } while (!endOfInput)
+//        }
     }
 
     public companion object
@@ -65,17 +73,15 @@ public class TextRows(override val headers: ValueTableHeader, private val binary
 /**
  * Create a row offset index for [TextRows]
  */
-@ExperimentalIoApi
 public suspend fun TextRows.buildRowIndex(): List<Int> = indexFlow().toList()
 
 /**
  * Finite table created from [RandomAccessBinary] with fixed width text table
  */
-@ExperimentalIoApi
 public class TextTable(
     override val headers: ValueTableHeader,
     private val binary: Binary,
-    public val index: List<Int>
+    public val index: List<Int>,
 ) : Table<Value> {
 
     override val columns: Collection<Column<Value>> get() = headers.map { RowTableColumn(this, it) }
@@ -86,8 +92,8 @@ public class TextTable(
 
     private fun readAt(offset: Int): Row<Value> {
         return binary.read(offset) {
-            val line = readUtf8Line()
-            return@read readLine(headers, line)
+            val line = readSafeUtf8Line()
+            return@read readRow(headers, line)
         }
     }
 
@@ -139,6 +145,7 @@ public suspend fun Output.writeRows(rows: Rows<Value>) {
         rows.headers.forEachIndexed { index, columnHeader ->
             writeValue(row[columnHeader] ?: Null, widths[index])
         }
+//        appendLine()
         writeUtf8String("\r\n")
     }
 }
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/textTableEnvelope.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/textTableEnvelope.kt
index d0cca162..6d6c790b 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/textTableEnvelope.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/io/textTableEnvelope.kt
@@ -1,19 +1,17 @@
 package hep.dataforge.tables.io
 
+import hep.dataforge.io.Binary
 import hep.dataforge.io.Envelope
+import hep.dataforge.io.asBinary
+import hep.dataforge.io.buildByteArray
 import hep.dataforge.meta.*
 import hep.dataforge.misc.DFExperimental
 import hep.dataforge.tables.SimpleColumnHeader
 import hep.dataforge.tables.Table
 import hep.dataforge.values.Value
-import kotlinx.io.Binary
-import kotlinx.io.ByteArrayOutput
-import kotlinx.io.ExperimentalIoApi
-import kotlinx.io.asBinary
 import kotlin.reflect.typeOf
 
 
-@ExperimentalIoApi
 public suspend fun Table<Value>.toEnvelope(): Envelope = Envelope {
     meta {
         headers.forEachIndexed { index, columnHeader ->
@@ -29,11 +27,12 @@ public suspend fun Table<Value>.toEnvelope(): Envelope = Envelope {
     type = "table.value"
     dataID = "valueTable[${this@toEnvelope.hashCode()}]"
 
-    data = ByteArrayOutput().apply { writeRows(this@toEnvelope) }.toByteArray().asBinary()
+    data = buildByteArray {
+        writeRows(this@toEnvelope)
+    }.asBinary()
 }
 
 @DFExperimental
-@ExperimentalIoApi
 public fun TextRows.Companion.readEnvelope(envelope: Envelope): TextRows {
     val header = envelope.meta.getIndexed("column")
         .entries.sortedBy { it.key?.toInt() }
diff --git a/dataforge-tables/src/jvmTest/kotlin/hep/dataforge/tables/io/TextRowsTest.kt b/dataforge-tables/src/jvmTest/kotlin/hep/dataforge/tables/io/TextRowsTest.kt
index b03bec33..71f3c266 100644
--- a/dataforge-tables/src/jvmTest/kotlin/hep/dataforge/tables/io/TextRowsTest.kt
+++ b/dataforge-tables/src/jvmTest/kotlin/hep/dataforge/tables/io/TextRowsTest.kt
@@ -1,5 +1,6 @@
 package hep.dataforge.tables.io
 
+import hep.dataforge.io.toByteArray
 import hep.dataforge.misc.DFExperimental
 import hep.dataforge.tables.Table
 import hep.dataforge.tables.row
@@ -8,14 +9,11 @@ import hep.dataforge.values.int
 import hep.dataforge.values.string
 import kotlinx.coroutines.flow.toList
 import kotlinx.coroutines.runBlocking
-import kotlinx.io.ExperimentalIoApi
-import kotlinx.io.toByteArray
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 
 @DFExperimental
-@ExperimentalIoApi
 class TextRowsTest {
     val table = Table<Value> {
         val a by column<Value>()
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/ContextGoalLogger.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/ContextGoalLogger.kt
index aae36ac6..5f144798 100644
--- a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/ContextGoalLogger.kt
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/ContextGoalLogger.kt
@@ -1,6 +1,7 @@
 package hep.dataforge.workspace
 
 import hep.dataforge.context.Context
+import hep.dataforge.context.info
 import hep.dataforge.context.logger
 import hep.dataforge.data.GoalLogger
 import kotlinx.coroutines.launch
diff --git a/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/fileData.kt b/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/fileData.kt
index a8378046..fb621fbf 100644
--- a/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/fileData.kt
+++ b/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/fileData.kt
@@ -5,10 +5,10 @@ import hep.dataforge.data.*
 import hep.dataforge.io.*
 import hep.dataforge.meta.*
 import hep.dataforge.misc.DFExperimental
+import io.ktor.utils.io.streams.asOutput
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.withContext
-import kotlinx.io.asOutput
 import java.nio.file.FileSystem
 import java.nio.file.Files
 import java.nio.file.Path
@@ -166,6 +166,7 @@ public suspend fun <T : Any> IOPlugin.writeDataDirectory(
 }
 
 
+@Suppress("BlockingMethodInNonBlockingContext")
 private suspend fun <T : Any> ZipOutputStream.writeNode(
     name: String,
     treeItem: DataTreeItem<T>,
@@ -180,7 +181,10 @@ private suspend fun <T : Any> ZipOutputStream.writeNode(
                 val entry = ZipEntry(name)
                 putNextEntry(entry)
                 envelopeFormat.run {
-                    writeObject(asOutput(), envelope)
+                    asOutput().run {
+                        writeEnvelope(this, envelope)
+                        flush()
+                    }
                 }
             }
             is DataTreeItem.Node -> {
@@ -196,8 +200,9 @@ private suspend fun <T : Any> ZipOutputStream.writeNode(
     }
 }
 
+@Suppress("BlockingMethodInNonBlockingContext")
 @DFExperimental
-suspend fun <T : Any> IOPlugin.writeZip(
+public suspend fun <T : Any> IOPlugin.writeZip(
     path: Path,
     tree: DataTree<T>,
     format: IOFormat<T>,
@@ -217,22 +222,6 @@ suspend fun <T : Any> IOPlugin.writeZip(
         zos.use {
             it.writeNode("", DataTreeItem.Node(tree), format, envelopeFormat)
         }
-
-//        if (Files.exists(actualFile) && Files.size(path) == 0.toLong()) {
-//            Files.delete(path)
-//        }
-//        //Files.createFile(actualFile)
-//        newZFS(actualFile).use { zipfs ->
-//            val zipRootPath = zipfs.getPath("/")
-//            Files.createDirectories(zipRootPath)
-//            val tmp = Files.createTempDirectory("df_zip")
-//            writeDataDirectory(tmp, node, format, envelopeFormat, metaFormat)
-//            Files.list(tmp).forEach { sourcePath ->
-//                val targetPath = sourcePath.fileName.toString()
-//                val internalTargetPath = zipRootPath.resolve(targetPath)
-//                Files.copy(sourcePath, internalTargetPath, StandardCopyOption.REPLACE_EXISTING)
-//            }
-//        }
     }
 }
 
diff --git a/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/FileDataTest.kt b/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/FileDataTest.kt
index df8e2673..19e029d5 100644
--- a/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/FileDataTest.kt
+++ b/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/FileDataTest.kt
@@ -4,13 +4,13 @@ import hep.dataforge.context.Global
 import hep.dataforge.data.*
 import hep.dataforge.io.IOFormat
 import hep.dataforge.io.io
+import hep.dataforge.io.readUtf8String
+import hep.dataforge.io.writeUtf8String
 import hep.dataforge.meta.Meta
 import hep.dataforge.misc.DFExperimental
+import io.ktor.utils.io.core.Input
+import io.ktor.utils.io.core.Output
 import kotlinx.coroutines.runBlocking
-import kotlinx.io.Input
-import kotlinx.io.Output
-import kotlinx.io.text.readUtf8String
-import kotlinx.io.text.writeUtf8String
 import java.nio.file.Files
 import java.nio.file.Path
 import kotlin.reflect.KType