diff --git a/CHANGELOG.md b/CHANGELOG.md
index ccbd72a1..82e3a927 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 ### Added
 
 ### Changed
+- Kotlin-logging moved from common to JVM and JS. Replaced by console for native.
 
 ### Deprecated
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 21633df0..478af371 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,20 +1,20 @@
 plugins {
-    id("ru.mipt.npm.project")
+    id("ru.mipt.npm.gradle.project")
 }
 
-val dataforgeVersion by extra("0.3.0")
-
-
-
 allprojects {
     group = "hep.dataforge"
-    version = dataforgeVersion
+    version = "0.3.1"
 
     apply<org.jetbrains.dokka.gradle.DokkaPlugin>()
 }
 
 subprojects {
-    apply(plugin = "ru.mipt.npm.publish")
+    apply(plugin = "ru.mipt.npm.gradle.publish")
+    repositories{
+        maven("https://dl.bintray.com/mipt-npm/kscience")
+        maven("https://dl.bintray.com/mipt-npm/dev")
+    }
 }
 
 readme {
diff --git a/dataforge-context/api/dataforge-context.api b/dataforge-context/api/dataforge-context.api
index d2d736d9..21ffb157 100644
--- a/dataforge-context/api/dataforge-context.api
+++ b/dataforge-context/api/dataforge-context.api
@@ -95,6 +95,10 @@ public final class hep/dataforge/context/Global : hep/dataforge/context/Context
 	public fun getCoroutineContext ()Lkotlin/coroutines/CoroutineContext;
 }
 
+public final class hep/dataforge/context/LoggingJvmKt {
+	public static final fun buildLogger (Lhep/dataforge/context/Context;Ljava/lang/String;)Lmu/KLogger;
+}
+
 public final class hep/dataforge/context/LoggingKt {
 	public static final fun getLogger (Lhep/dataforge/context/Context;)Lmu/KLogger;
 	public static final fun getLogger (Lhep/dataforge/context/ContextAware;)Lmu/KLogger;
diff --git a/dataforge-context/build.gradle.kts b/dataforge-context/build.gradle.kts
index 84785ce8..3f80796e 100644
--- a/dataforge-context/build.gradle.kts
+++ b/dataforge-context/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 description = "Context and provider definitions"
@@ -11,22 +11,33 @@ kscience {
 
 kotlin {
     sourceSets {
-        val commonMain by getting {
+        val commonMain by getting{
             dependencies {
                 api(project(":dataforge-meta"))
-                api("io.github.microutils:kotlin-logging:1.9.0-dev-npm-2")
             }
         }
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 api(kotlin("reflect"))
-                api("ch.qos.logback:logback-classic:1.2.3")
+                api("io.github.microutils:kotlin-logging-jvm:2.0.4")
+                implementation("ch.qos.logback:logback-classic:1.2.3")
             }
         }
-        val jsMain by getting {
+        jsMain {
             dependencies {
+                api("io.github.microutils:kotlin-logging-js:2.0.4")
             }
         }
+//
+//        val nativeMain by getting{
+//            dependsOn(commonMain)
+//        }
+//        val mingwX64Main by getting{
+//            dependsOn(nativeMain)
+//        }
+//        val linuxX64Main by getting{
+//            dependsOn(nativeMain)
+//        }
     }
 }
 
diff --git a/dataforge-data/build.gradle.kts b/dataforge-data/build.gradle.kts
index 16d98ced..74ed12db 100644
--- a/dataforge-data/build.gradle.kts
+++ b/dataforge-data/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 kscience{
diff --git a/dataforge-io/build.gradle.kts b/dataforge-io/build.gradle.kts
index 01f749cb..c5292aec 100644
--- a/dataforge-io/build.gradle.kts
+++ b/dataforge-io/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 description = "IO module"
diff --git a/dataforge-io/dataforge-io-yaml/build.gradle.kts b/dataforge-io/dataforge-io-yaml/build.gradle.kts
index 4ee1029a..1b57fc71 100644
--- a/dataforge-io/dataforge-io-yaml/build.gradle.kts
+++ b/dataforge-io/dataforge-io-yaml/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-//    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+//    id("ru.mipt.npm.gradle.native")
 }
 
 description = "YAML meta IO"
diff --git a/dataforge-meta/build.gradle.kts b/dataforge-meta/build.gradle.kts
index 45ca68f3..a2cc3c66 100644
--- a/dataforge-meta/build.gradle.kts
+++ b/dataforge-meta/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 kscience {
diff --git a/dataforge-output/build.gradle.kts b/dataforge-output/build.gradle.kts
index 6051cb1c..7faac326 100644
--- a/dataforge-output/build.gradle.kts
+++ b/dataforge-output/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 kotlin {
diff --git a/dataforge-scripting/build.gradle.kts b/dataforge-scripting/build.gradle.kts
index e0c47057..a538a980 100644
--- a/dataforge-scripting/build.gradle.kts
+++ b/dataforge-scripting/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.mpp")
+    id("ru.mipt.npm.gradle.mpp")
 }
 
 kotlin {
diff --git a/dataforge-tables/build.gradle.kts b/dataforge-tables/build.gradle.kts
index d0f008c3..507b1f71 100644
--- a/dataforge-tables/build.gradle.kts
+++ b/dataforge-tables/build.gradle.kts
@@ -1,14 +1,16 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 kotlin {
     sourceSets {
-        val commonMain by getting{
+        commonMain{
             dependencies {
                 api(project(":dataforge-context"))
                 api(project(":dataforge-io"))
+
+                api(kotlin("reflect"))
             }
         }
     }
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnDef.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnDef.kt
index 2dd2e85b..a309443e 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnDef.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnDef.kt
@@ -1,10 +1,10 @@
 package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
 
 public data class ColumnDef<out T : Any>(
     override val name: String,
-    override val type: KClass<out T>,
+    override val type: KType,
     override val meta: Meta
 ): ColumnHeader<T>
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnHeader.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnHeader.kt
index 4aeb3124..95241682 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnHeader.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnHeader.kt
@@ -6,7 +6,7 @@ import hep.dataforge.meta.int
 import hep.dataforge.meta.string
 import hep.dataforge.values.Value
 import hep.dataforge.values.ValueType
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
 
 public typealias TableHeader<C> = List<ColumnHeader<C>>
 
@@ -14,13 +14,13 @@ public typealias ValueTableHeader = List<ColumnHeader<Value>>
 
 public interface ColumnHeader<out T : Any> {
     public val name: String
-    public val type: KClass<out T>
+    public val type: KType
     public val meta: Meta
 }
 
 public data class SimpleColumnHeader<T : Any>(
     override val name: String,
-    override val type: KClass<out T>,
+    override val type: KType,
     override val meta: Meta
 ) : ColumnHeader<T>
 
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnTable.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnTable.kt
index e79ebd08..c9c8ac97 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnTable.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ColumnTable.kt
@@ -13,11 +13,11 @@ public class ColumnTable<T : Any>(override val columns: Collection<Column<T>>) :
     override val rows: List<Row<T>>
         get() = (0 until rowsNum).map { VirtualRow(this, it) }
 
-    override fun getValue(row: Int, column: String): T? = columns[column]?.get(row)
+    override fun get(row: Int, column: String): T? = columns[column]?.get(row)
 }
 
 internal class VirtualRow<T : Any>(val table: Table<T>, val index: Int) : Row<T> {
-    override fun getValue(column: String): T? = table.getValue(index, column)
+    override fun get(column: String): T? = table.get(index, column)
 
 //    override fun <T : C> get(columnHeader: ColumnHeader<T>): T? {
 //        return table.co[columnHeader][index]
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ListColumn.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ListColumn.kt
index 7b0549fa..165ff6de 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ListColumn.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/ListColumn.kt
@@ -1,12 +1,13 @@
 package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
+import kotlin.reflect.typeOf
 
 public class ListColumn<T : Any>(
     override val name: String,
     private val data: List<T?>,
-    override val type: KClass<out T>,
+    override val type: KType,
     override val meta: Meta
 ) : Column<T> {
     override val size: Int get() = data.size
@@ -18,7 +19,7 @@ public class ListColumn<T : Any>(
             name: String,
             def: ColumnScheme,
             data: List<T?>
-        ): ListColumn<T> = ListColumn(name, data, T::class, def.toMeta())
+        ): ListColumn<T> = ListColumn(name, data, typeOf<T>(), def.toMeta())
 
         public inline operator fun <reified T : Any> invoke(
             name: String,
@@ -31,5 +32,5 @@ public class ListColumn<T : Any>(
 
 public inline fun <T : Any, reified R : Any> Column<T>.map(meta: Meta = this.meta, noinline block: (T?) -> R): Column<R> {
     val data = List(size) { block(get(it)) }
-    return ListColumn(name, data, R::class, meta)
+    return ListColumn(name, data, typeOf<R>(), meta)
 }
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableColumnTable.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableColumnTable.kt
index eb69d7e7..01882902 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableColumnTable.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableColumnTable.kt
@@ -11,7 +11,7 @@ public class MutableColumnTable<C: Any>(public val size: Int) : Table<C> {
         VirtualRow(this, it)
     }
 
-    override fun getValue(row: Int, column: String): C? = columns[column]?.get(row)
+    override fun get(row: Int, column: String): C? = columns[column]?.get(row)
 
     /**
      * Add a fixed column to the end of the table
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableTable.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableTable.kt
index f4070146..8fca7705 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableTable.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/MutableTable.kt
@@ -1,27 +1,36 @@
 package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
-import hep.dataforge.meta.invoke
 import hep.dataforge.values.Value
-import kotlin.reflect.KClass
+import kotlin.properties.PropertyDelegateProvider
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KType
+import kotlin.reflect.typeOf
 
 public class MutableTable<C : Any>(
     override val rows: MutableList<Row<C>>,
-    override val header: MutableList<ColumnHeader<C>>
-) : RowTable<C>(rows, header) {
+    override val headers: MutableList<ColumnHeader<C>>,
+) : RowTable<C>(rows, headers) {
 
-    public fun <R : C> column(name: String, type: KClass<out R>, meta: Meta): ColumnHeader<R> {
-        val column = SimpleColumnHeader(name, type, meta)
-        header.add(column)
+    @PublishedApi
+    internal fun <T : C> addColumn(name: String, type: KType, meta: Meta): ColumnHeader<T> {
+        val column = SimpleColumnHeader<T>(name, type, meta)
+        headers.add(column)
         return column
     }
 
-    public inline fun <reified T : C> column(
+    public inline fun <reified T : C> addColumn(
         name: String,
+        noinline columnMetaBuilder: ColumnScheme.() -> Unit = {},
+    ): ColumnHeader<T> = addColumn(name, typeOf<T>(), ColumnScheme(columnMetaBuilder).toMeta())
+
+    public inline fun <reified T : C> column(
         noinline columnMetaBuilder: ColumnScheme.() -> Unit = {}
-    ): ColumnHeader<T> {
-        return column(name, T::class, ColumnScheme(columnMetaBuilder).toMeta())
-    }
+    ): PropertyDelegateProvider<Any?, ReadOnlyProperty<Any?, ColumnHeader<T>>> =
+        PropertyDelegateProvider { _, property ->
+            val res = addColumn<T>(property.name, columnMetaBuilder)
+            ReadOnlyProperty { _, _ -> res }
+        }
 
     public fun row(map: Map<String, C?>): Row<C> {
         val row = MapRow(map)
@@ -37,5 +46,5 @@ public fun MutableTable<Value>.row(vararg pairs: Pair<ColumnHeader<Value>, Any?>
     row(pairs.associate { it.first.name to Value.of(it.second) })
 
 public fun <C : Any> Table<C>.edit(block: MutableTable<C>.() -> Unit): Table<C> {
-    return MutableTable(rows.toMutableList(), header.toMutableList()).apply(block)
+    return MutableTable(rows.toMutableList(), headers.toMutableList()).apply(block)
 }
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/RowTable.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/RowTable.kt
index 9ea908cc..6b7b1261 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/RowTable.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/RowTable.kt
@@ -2,25 +2,31 @@ package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
 import kotlinx.coroutines.flow.toList
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
 
 public inline class MapRow<C : Any>(private val values: Map<String, C?>) : Row<C> {
-    override fun getValue(column: String): C? = values[column]
+    override fun get(column: String): C? = values[column]
 }
 
-internal class RowTableColumn<C : Any, T : C>(val table: Table<C>, val header: ColumnHeader<T>) : Column<T> {
+internal class RowTableColumn<T : Any, R : T>(val table: Table<T>, val header: ColumnHeader<R>) : Column<R> {
+    init {
+        require(header in table.headers){"Header $header does not belong to $table"}
+    }
+
     override val name: String get() = header.name
-    override val type: KClass<out T> get() = header.type
+    override val type: KType get() = header.type
     override val meta: Meta get() = header.meta
     override val size: Int get() = table.rows.size
 
-    override fun get(index: Int): T? = table.rows[index].getValue(name, type)
+    @Suppress("UNCHECKED_CAST")
+    override fun get(index: Int): R? = table[index, name]?.let { it as R}
 }
 
-public open class RowTable<C : Any>(override val rows: List<Row<C>>, override val header: List<ColumnHeader<C>>) : Table<C> {
-    override fun getValue(row: Int, column: String): C? = rows[row].getValue(column)
+public open class RowTable<C : Any>(override val rows: List<Row<C>>, override val headers: List<ColumnHeader<C>>) :
+    Table<C> {
+    override fun get(row: Int, column: String): C? = rows[row].get(column)
 
-    override val columns: List<Column<C>> get() = header.map { RowTableColumn(this, it) }
+    override val columns: List<Column<C>> get() = headers.map { RowTableColumn(this, it) }
 }
 
-public suspend fun <C : Any> Rows<C>.collect(): Table<C> = this as? Table<C> ?: RowTable(rowFlow().toList(), header)
\ No newline at end of file
+public suspend fun <C : Any> Rows<C>.collect(): Table<C> = this as? Table<C> ?: RowTable(rowFlow().toList(), headers)
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/Table.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/Table.kt
index 72875a05..bd0410e1 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/Table.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/Table.kt
@@ -2,22 +2,20 @@ package hep.dataforge.tables
 
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.asFlow
-import kotlin.reflect.KClass
-import kotlin.reflect.cast
 
 /**
  * Finite or infinite row set. Rows are produced in a lazy suspendable [Flow].
- * Each row must contain at least all the fields mentioned in [header].
+ * Each row must contain at least all the fields mentioned in [headers].
  */
 public interface Rows<out T : Any> {
-    public val header: TableHeader<T>
+    public val headers: TableHeader<T>
     public fun rowFlow(): Flow<Row<T>>
 }
 
 public interface Table<out T : Any> : Rows<T> {
-    public fun getValue(row: Int, column: String): T?
+    public operator fun get(row: Int, column: String): T?
     public val columns: Collection<Column<T>>
-    override val header: TableHeader<T> get() = columns.toList()
+    override val headers: TableHeader<T> get() = columns.toList()
     public val rows: List<Row<T>>
     override fun rowFlow(): Flow<Row<T>> = rows.asFlow()
 
@@ -31,16 +29,13 @@ public interface Table<out T : Any> : Rows<T> {
     }
 }
 
-public fun <C : Any, T : C> Table<C>.getValue(row: Int, column: String, type: KClass<out T>): T? =
-    type.cast(getValue(row, column))
-
 public operator fun <T : Any> Collection<Column<T>>.get(name: String): Column<T>? = find { it.name == name }
 
-public inline operator fun <C : Any, reified T : C> Table<C>.get(row: Int, column: String): T? =
-    getValue(row, column, T::class)
 
-public operator fun <C : Any, T : C> Table<C>.get(row: Int, column: ColumnHeader<T>): T? =
-    getValue(row, column.name, column.type)
+public inline operator fun <T : Any, reified R : T> Table<T>.get(row: Int, column: ColumnHeader<R>): R? {
+    require(headers.contains(column)) { "Column $column is not in table headers" }
+    return get(row, column.name) as? R
+}
 
 public interface Column<out T : Any> : ColumnHeader<T> {
     public val size: Int
@@ -56,10 +51,7 @@ public operator fun <T : Any> Column<T>.iterator(): Iterator<T?> = iterator {
 }
 
 public interface Row<out T : Any> {
-    public fun getValue(column: String): T?
+    public operator fun get(column: String): T?
 }
 
-public fun <C : Any, T : C> Row<C>.getValue(column: String, type: KClass<out T>): T? = type.cast(getValue(column))
-
-public inline operator fun <reified T : Any> Row<T>.get(column: String): T? = T::class.cast(getValue(column))
-public operator fun <C : Any, T : C> Row<C>.get(column: ColumnHeader<T>): T? = getValue(column.name, column.type)
\ No newline at end of file
+public inline operator fun <T : Any, reified R : T> Row<T>.get(column: ColumnHeader<R>): R? = get(column.name) as? R
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/TransformationColumn.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/TransformationColumn.kt
index 83fdc06b..a0f78eea 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/TransformationColumn.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/TransformationColumn.kt
@@ -1,17 +1,18 @@
 package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
+import kotlin.reflect.typeOf
 
 /**
  * A virtual column obtained by transforming Given row to a single value
  */
 public class TransformationColumn<T : Any, R : Any>(
     public val table: Table<T>,
-    override val type: KClass<out R>,
+    override val type: KType,
     override val name: String,
     override val meta: Meta,
-    public val mapper: (Row<T>) -> R?
+    public val mapper: (Row<T>) -> R?,
 ) : Column<R> {
     override val size: Int get() = table.rows.size
 
@@ -25,10 +26,10 @@ public class TransformationColumn<T : Any, R : Any>(
  */
 public class CachedTransformationColumn<T : Any, R : Any>(
     public val table: Table<T>,
-    override val type: KClass<out R>,
+    override val type: KType,
     override val name: String,
     override val meta: Meta,
-    public val mapper: (Row<T>) -> R?
+    public val mapper: (Row<T>) -> R?,
 ) : Column<R> {
     override val size: Int get() = table.rows.size
     private val values: HashMap<Int, R?> = HashMap()
@@ -42,14 +43,18 @@ public inline fun <T : Any, reified R : Any> Table<T>.mapRows(
     name: String,
     meta: Meta = Meta.EMPTY,
     cache: Boolean = false,
-    noinline mapper: (Row<T>) -> R?
+    noinline mapper: (Row<T>) -> R?,
 ): Column<R> = if (cache) {
-    CachedTransformationColumn(this, R::class, name, meta, mapper)
+    CachedTransformationColumn(this, typeOf<R>(), name, meta, mapper)
 } else {
-    TransformationColumn(this, R::class, name, meta, mapper)
+    TransformationColumn(this, typeOf<R>(), name, meta, mapper)
 }
 
-public fun <T : Any> Table<T>.mapRowsToDouble(name: String, meta: Meta = Meta.EMPTY, block: (Row<T>) -> Double): RealColumn {
+public fun <T : Any> Table<T>.mapRowsToDouble(
+    name: String,
+    meta: Meta = Meta.EMPTY,
+    block: (Row<T>) -> Double,
+): RealColumn {
     val data = DoubleArray(rows.size) { block(rows[it]) }
     return RealColumn(name, data, meta)
 }
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 e9e6e31e..0ef003c4 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
@@ -32,7 +32,7 @@ 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 header: ValueTableHeader, private val binary: Binary) : Rows<Value> {
+public class TextRows(override val headers: ValueTableHeader, private val binary: Binary) : Rows<Value> {
 
     /**
      * A flow of indexes of string start offsets ignoring empty strings
@@ -52,7 +52,7 @@ public class TextRows(override val header: ValueTableHeader, private val binary:
         flow {
             forEachUtf8Line { line ->
                 if (line.isNotBlank()) {
-                    val row = readLine(header, line)
+                    val row = readLine(headers, line)
                     emit(row)
                 }
             }
@@ -73,25 +73,25 @@ public suspend fun TextRows.buildRowIndex(): List<Int> = indexFlow().toList()
  */
 @ExperimentalIoApi
 public class TextTable(
-    override val header: ValueTableHeader,
+    override val headers: ValueTableHeader,
     private val binary: Binary,
     public val index: List<Int>
 ) : Table<Value> {
 
-    override val columns: Collection<Column<Value>> get() = header.map { RowTableColumn(this, it) }
+    override val columns: Collection<Column<Value>> get() = headers.map { RowTableColumn(this, it) }
 
     override val rows: List<Row<Value>> get() = index.map { readAt(it) }
 
-    override fun rowFlow(): Flow<Row<Value>> = TextRows(header, binary).rowFlow()
+    override fun rowFlow(): Flow<Row<Value>> = TextRows(headers, binary).rowFlow()
 
     private fun readAt(offset: Int): Row<Value> {
         return binary.read(offset) {
             val line = readUtf8Line()
-            return@read readLine(header, line)
+            return@read readLine(headers, line)
         }
     }
 
-    override fun getValue(row: Int, column: String): Value? {
+    override fun get(row: Int, column: String): Value? {
         val offset = index[row]
         return readAt(offset)[column]
     }
@@ -132,11 +132,11 @@ private fun Output.writeValue(value: Value, width: Int, left: Boolean = true) {
  * Write rows without header to the output
  */
 public suspend fun Output.writeRows(rows: Rows<Value>) {
-    val widths: List<Int> = rows.header.map {
+    val widths: List<Int> = rows.headers.map {
         it.textWidth
     }
     rows.rowFlow().collect { row ->
-        rows.header.forEachIndexed { index, columnHeader ->
+        rows.headers.forEachIndexed { index, columnHeader ->
             writeValue(row[columnHeader] ?: Null, widths[index])
         }
         writeUtf8String("\r\n")
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 b6be63e0..d0cca162 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
@@ -10,12 +10,13 @@ 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>.wrap(): Envelope = Envelope {
+public suspend fun Table<Value>.toEnvelope(): Envelope = Envelope {
     meta {
-        header.forEachIndexed { index, columnHeader ->
+        headers.forEachIndexed { index, columnHeader ->
             set("column", index.toString(), Meta {
                 "name" put columnHeader.name
                 if (!columnHeader.meta.isEmpty()) {
@@ -26,9 +27,9 @@ public suspend fun Table<Value>.wrap(): Envelope = Envelope {
     }
 
     type = "table.value"
-    dataID = "valueTable[${this@wrap.hashCode()}]"
+    dataID = "valueTable[${this@toEnvelope.hashCode()}]"
 
-    data = ByteArrayOutput().apply { writeRows(this@wrap) }.toByteArray().asBinary()
+    data = ByteArrayOutput().apply { writeRows(this@toEnvelope) }.toByteArray().asBinary()
 }
 
 @DFExperimental
@@ -37,7 +38,7 @@ public fun TextRows.Companion.readEnvelope(envelope: Envelope): TextRows {
     val header = envelope.meta.getIndexed("column")
         .entries.sortedBy { it.key?.toInt() }
         .map { (_, item) ->
-            SimpleColumnHeader(item.node["name"].string!!, Value::class, item.node["meta"].node ?: Meta.EMPTY)
+            SimpleColumnHeader<Value>(item.node["name"].string!!, typeOf<Value>(), item.node["meta"].node ?: Meta.EMPTY)
         }
     return TextRows(header, envelope.data ?: Binary.EMPTY)
 }
\ No newline at end of file
diff --git a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/numericColumns.kt b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/numericColumns.kt
index 86868a22..05d26d49 100644
--- a/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/numericColumns.kt
+++ b/dataforge-tables/src/commonMain/kotlin/hep/dataforge/tables/numericColumns.kt
@@ -1,8 +1,8 @@
 package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
-import hep.dataforge.meta.invoke
-import kotlin.reflect.KClass
+import kotlin.reflect.KType
+import kotlin.reflect.typeOf
 
 
 public class RealColumn(
@@ -10,7 +10,7 @@ public class RealColumn(
     public val data: DoubleArray,
     override val meta: Meta = Meta.EMPTY
 ) : Column<Double> {
-    override val type: KClass<out Double> get() = Double::class
+    override val type: KType get() = typeOf<Double>()
 
     override val size: Int get() = data.size
 
@@ -49,7 +49,7 @@ public class IntColumn(
     public val data: IntArray,
     override val meta: Meta = Meta.EMPTY
 ) : Column<Int> {
-    override val type: KClass<out Int> get() = Int::class
+    override val type: KType get() = typeOf<Int>()
 
     override val size: Int get() = data.size
 
diff --git a/dataforge-tables/src/jvmMain/kotlin/hep/dataforge/tables/CastColumn.kt b/dataforge-tables/src/jvmMain/kotlin/hep/dataforge/tables/CastColumn.kt
index 0ab6c515..b9e62e96 100644
--- a/dataforge-tables/src/jvmMain/kotlin/hep/dataforge/tables/CastColumn.kt
+++ b/dataforge-tables/src/jvmMain/kotlin/hep/dataforge/tables/CastColumn.kt
@@ -2,30 +2,31 @@ package hep.dataforge.tables
 
 import hep.dataforge.meta.Meta
 import kotlin.properties.ReadOnlyProperty
-import kotlin.reflect.KClass
 import kotlin.reflect.KProperty
-import kotlin.reflect.full.isSubclassOf
-import kotlin.reflect.safeCast
+import kotlin.reflect.KType
+import kotlin.reflect.full.isSubtypeOf
 
 @Suppress("UNCHECKED_CAST")
-public fun <T : Any> Column<*>.cast(type: KClass<out T>): Column<T> {
-    return if (type.isSubclassOf(this.type)) {
+public fun <T : Any> Column<*>.cast(type: KType): Column<T> {
+    return if (type.isSubtypeOf(this.type)) {
         this as Column<T>
     } else {
         CastColumn(this, type)
     }
 }
 
-public class CastColumn<T : Any>(private val origin: Column<*>, override val type: KClass<out T>) : Column<T> {
+private class CastColumn<T : Any>(private val origin: Column<*>, override val type: KType) : Column<T> {
     override val name: String get() = origin.name
     override val meta: Meta get() = origin.meta
     override val size: Int get() = origin.size
 
-
-    override fun get(index: Int): T? = type.safeCast(origin[index])
+    @Suppress("UNCHECKED_CAST")
+    override fun get(index: Int): T? = origin[index]?.let {
+        it as T
+    }
 }
 
-public class ColumnProperty<C: Any, T : C>(public val table: Table<C>, public val type: KClass<T>) : ReadOnlyProperty<Any?, Column<T>> {
+public class ColumnProperty<C: Any, T : C>(public val table: Table<C>, public val type: KType) : ReadOnlyProperty<Any?, Column<T>> {
     override fun getValue(thisRef: Any?, property: KProperty<*>): Column<T> {
         val name = property.name
         return (table.columns[name] ?: error("Column with name $name not found in the table")).cast(type)
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 90fa3a01..b03bec33 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
@@ -2,7 +2,6 @@ package hep.dataforge.tables.io
 
 import hep.dataforge.misc.DFExperimental
 import hep.dataforge.tables.Table
-import hep.dataforge.tables.get
 import hep.dataforge.tables.row
 import hep.dataforge.values.Value
 import hep.dataforge.values.int
@@ -19,22 +18,20 @@ import kotlin.test.assertEquals
 @ExperimentalIoApi
 class TextRowsTest {
     val table = Table<Value> {
-        val a = column<Value>("a")
-        val b = column<Value>("b")
+        val a by column<Value>()
+        val b by column<Value>()
         row(a to 1, b to "b1")
         row(a to 2, b to "b2")
     }
 
     @Test
-    fun testTableWriteRead() {
-        runBlocking {
-            val envelope = table.wrap()
-            val string = envelope.data!!.toByteArray().decodeToString()
-            println(string)
-            val table = TextRows.readEnvelope(envelope)
-            val rows = table.rowFlow().toList()
-            assertEquals(1, rows[0]["a"]?.int)
-            assertEquals("b2", rows[1]["b"]?.string)
-        }
+    fun testTableWriteRead() = runBlocking {
+        val envelope = table.toEnvelope()
+        val string = envelope.data!!.toByteArray().decodeToString()
+        println(string)
+        val table = TextRows.readEnvelope(envelope)
+        val rows = table.rowFlow().toList()
+        assertEquals(1, rows[0]["a"]?.int)
+        assertEquals("b2", rows[1]["b"]?.string)
     }
 }
\ No newline at end of file
diff --git a/dataforge-workspace/build.gradle.kts b/dataforge-workspace/build.gradle.kts
index ae83b062..c6e62b36 100644
--- a/dataforge-workspace/build.gradle.kts
+++ b/dataforge-workspace/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    id("ru.mipt.npm.mpp")
-    id("ru.mipt.npm.native")
+    id("ru.mipt.npm.gradle.mpp")
+    id("ru.mipt.npm.gradle.native")
 }
 
 kotlin {
diff --git a/gradle.properties b/gradle.properties
index a782b701..9b6d2aef 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,9 +1,11 @@
-kotlin.code.style=official
-kotlin.parallel.tasks.in.project=true
-kotlin.mpp.enableGranularSourceSetsMetadata=true
-//kotlin.native.enableDependencyPropagation=false
-kotlin.mpp.stability.nowarn=true
-
 org.gradle.jvmargs=-XX:MaxMetaspaceSize=512m
 org.gradle.parallel=true
-systemProp.org.gradle.internal.publish.checksums.insecure=true
\ No newline at end of file
+
+kotlin.code.style=official
+kotlin.parallel.tasks.in.project=true
+
+kotlin.mpp.enableGranularSourceSetsMetadata=true
+kotlin.native.enableDependencyPropagation=false
+kotlin.mpp.stability.nowarn=true
+
+bintrayPublish=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 28ff446a..442d9132 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/settings.gradle.kts b/settings.gradle.kts
index defbc0e5..8746a320 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,6 +1,6 @@
 pluginManagement {
     repositories {
-        mavenLocal()
+        maven("https://repo.kotlin.link")
         jcenter()
         gradlePluginPortal()
         maven("https://dl.bintray.com/kotlin/kotlin-eap")
@@ -10,15 +10,15 @@ pluginManagement {
         maven("https://dl.bintray.com/mipt-npm/dev")
     }
 
-    val toolsVersion = "0.7.6"
+    val toolsVersion = "0.8.3"
     val kotlinVersion = "1.4.30"
 
     plugins {
-        id("ru.mipt.npm.project") version toolsVersion
-        id("ru.mipt.npm.mpp") version toolsVersion
-        id("ru.mipt.npm.jvm") version toolsVersion
-        id("ru.mipt.npm.js") version toolsVersion
-        id("ru.mipt.npm.publish") version toolsVersion
+        id("ru.mipt.npm.gradle.project") version toolsVersion
+        id("ru.mipt.npm.gradle.mpp") version toolsVersion
+        id("ru.mipt.npm.gradle.jvm") version toolsVersion
+        id("ru.mipt.npm.gradle.js") version toolsVersion
+        id("ru.mipt.npm.gradle.publish") version toolsVersion
         kotlin("jvm") version kotlinVersion
         kotlin("js") version kotlinVersion
     }