diff --git a/CHANGELOG.md b/CHANGELOG.md
index b078be98..f1dc21eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 ### Added
 
 ### Changed
+- `Factory` is now `fun interface` and uses `build` instead of `invoke`. `invoke moved to an extension.
 
 ### Deprecated
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 61588f0a..574b51bc 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ plugins {
 
 allprojects {
     group = "space.kscience"
-    version = "0.5.2"
+    version = "0.5.3-dev-1"
     repositories{
         mavenCentral()
     }
diff --git a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/ContextBuilder.kt b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/ContextBuilder.kt
index 80329176..c0db4314 100644
--- a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/ContextBuilder.kt
+++ b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/ContextBuilder.kt
@@ -68,7 +68,7 @@ public class ContextBuilder internal constructor(
             // Add if does not exist
             if (existing == null) {
                 //TODO bypass if parent already has plugin with given meta?
-                val plugin = factory(meta, parent)
+                val plugin = factory.build(parent, meta)
 
                 for ((depFactory, deoMeta) in plugin.dependsOn()) {
                     addPlugin(depFactory, deoMeta)
diff --git a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/Factory.kt b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/Factory.kt
index 9639daaf..1d3efee8 100644
--- a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/Factory.kt
+++ b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/Factory.kt
@@ -2,6 +2,11 @@ package space.kscience.dataforge.context
 
 import space.kscience.dataforge.meta.Meta
 
-public interface Factory<out T : Any> {
-    public operator fun invoke(meta: Meta = Meta.EMPTY, context: Context = Global): T
-}
\ No newline at end of file
+public fun interface Factory<out T> {
+    public fun build(context: Context, meta: Meta): T
+}
+
+public operator fun <T> Factory<T>.invoke(
+    meta: Meta = Meta.EMPTY,
+    context: Context = Global,
+): T = build(context, meta)
\ No newline at end of file
diff --git a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/LogManager.kt b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/LogManager.kt
index 84a2423d..d11d0c2f 100644
--- a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/LogManager.kt
+++ b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/LogManager.kt
@@ -63,7 +63,7 @@ public class DefaultLogManager : AbstractPlugin(), LogManager {
     override val tag: PluginTag get() = Companion.tag
 
     public companion object : PluginFactory<DefaultLogManager> {
-        override fun invoke(meta: Meta, context: Context): DefaultLogManager = DefaultLogManager()
+        override fun build(context: Context, meta: Meta): DefaultLogManager = DefaultLogManager()
 
         override val tag: PluginTag = PluginTag(group = PluginTag.DATAFORGE_GROUP, name = "log.default")
         override val type: KClass<out DefaultLogManager> = DefaultLogManager::class
@@ -75,7 +75,7 @@ public class DefaultLogManager : AbstractPlugin(), LogManager {
  */
 public val Context.logger: LogManager
     get() = plugins.find(inherit = true) { it is LogManager } as? LogManager
-        ?: getGlobalLoggerFactory()(context = Global).apply { attach(Global) }
+        ?: getGlobalLoggerFactory().build(context = Global, meta = Meta.EMPTY).apply { attach(Global) }
 
 /**
  * The named proxy logger for a context member
diff --git a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/PluginFactory.kt b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/PluginFactory.kt
index 854f2d1c..b7b0eb3a 100644
--- a/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/PluginFactory.kt
+++ b/dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/context/PluginFactory.kt
@@ -18,7 +18,7 @@ public interface PluginFactory<T : Plugin> : Factory<T> {
  * Plugin factory created for the specific actual plugin
  */
 internal class DeFactoPluginFactory<T : Plugin>(val plugin: T) : PluginFactory<T> {
-    override fun invoke(meta: Meta, context: Context): T = plugin
+    override fun build(context: Context, meta: Meta): T = plugin
     override val tag: PluginTag get() = plugin.tag
     override val type: KClass<out T> get() = plugin::class
 }
diff --git a/dataforge-context/src/jsMain/kotlin/space/kscience/dataforge/context/loggingJs.kt b/dataforge-context/src/jsMain/kotlin/space/kscience/dataforge/context/loggingJs.kt
index 0aae274a..21cc036a 100644
--- a/dataforge-context/src/jsMain/kotlin/space/kscience/dataforge/context/loggingJs.kt
+++ b/dataforge-context/src/jsMain/kotlin/space/kscience/dataforge/context/loggingJs.kt
@@ -22,7 +22,7 @@ public class ConsoleLogManager : AbstractPlugin(), LogManager {
     override val tag: PluginTag get() = Companion.tag
 
     public companion object : PluginFactory<ConsoleLogManager> {
-        override fun invoke(meta: Meta, context: Context): ConsoleLogManager = ConsoleLogManager()
+        override fun build(context: Context, meta: Meta): ConsoleLogManager = ConsoleLogManager()
 
         override val tag: PluginTag = PluginTag(group = PluginTag.DATAFORGE_GROUP, name = "log.jsConsole")
         override val type: KClass<out ConsoleLogManager> = ConsoleLogManager::class
diff --git a/dataforge-context/src/jvmMain/kotlin/space/kscience/dataforge/context/loggingJvm.kt b/dataforge-context/src/jvmMain/kotlin/space/kscience/dataforge/context/loggingJvm.kt
index 445e04c9..38796a32 100644
--- a/dataforge-context/src/jvmMain/kotlin/space/kscience/dataforge/context/loggingJvm.kt
+++ b/dataforge-context/src/jvmMain/kotlin/space/kscience/dataforge/context/loggingJvm.kt
@@ -24,7 +24,7 @@ public class SlfLogManager : AbstractPlugin(), LogManager {
     override val tag: PluginTag get() = Companion.tag
 
     public companion object : PluginFactory<SlfLogManager> {
-        override fun invoke(meta: Meta, context: Context): SlfLogManager = SlfLogManager()
+        override fun build(context: Context, meta: Meta): SlfLogManager = SlfLogManager()
 
         override val tag: PluginTag = PluginTag(group = PluginTag.DATAFORGE_GROUP, name = "log.kotlinLogging")
         override val type: KClass<out SlfLogManager> = SlfLogManager::class
diff --git a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
index 6c96b29d..001c8ef0 100644
--- a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
+++ b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
@@ -5,6 +5,7 @@ import io.ktor.utils.io.core.Output
 import io.ktor.utils.io.core.readBytes
 import io.ktor.utils.io.core.readUTF8Line
 import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.io.*
 import space.kscience.dataforge.io.IOFormat.Companion.META_KEY
 import space.kscience.dataforge.io.IOFormat.Companion.NAME_KEY
@@ -71,7 +72,7 @@ public class FrontMatterEnvelopeFormat(
         metaFormatFactory: MetaFormatFactory,
         formatMeta: Meta,
     ) {
-        val metaFormat = metaFormatFactory(formatMeta, this@FrontMatterEnvelopeFormat.io.context)
+        val metaFormat = metaFormatFactory.build(this@FrontMatterEnvelopeFormat.io.context, formatMeta)
         output.writeRawString("$SEPARATOR\r\n")
         metaFormat.run { this.writeObject(output, envelope.meta) }
         output.writeRawString("$SEPARATOR\r\n")
@@ -91,20 +92,20 @@ public class FrontMatterEnvelopeFormat(
 
         private val metaTypeRegex = "---(\\w*)\\s*".toRegex()
 
-        override fun invoke(meta: Meta, context: Context): EnvelopeFormat {
+        override fun build(context: Context, meta: Meta): EnvelopeFormat {
             return FrontMatterEnvelopeFormat(context.io, meta)
         }
 
         override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? = binary.read {
             val line = readSafeUtf8Line()
             return@read if (line.startsWith("---")) {
-                invoke()
+                default
             } else {
                 null
             }
         }
 
-        private val default by lazy { invoke() }
+        private val default by lazy { build(Global, Meta.EMPTY) }
 
         override fun readPartial(input: Input): PartialEnvelope =
             default.readPartial(input)
diff --git a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlMetaFormat.kt b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlMetaFormat.kt
index f34da12d..148a2b87 100644
--- a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlMetaFormat.kt
+++ b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlMetaFormat.kt
@@ -115,13 +115,13 @@ public class YamlMetaFormat(private val meta: Meta) : MetaFormat {
     }
 
     public companion object : MetaFormatFactory {
-        override fun invoke(meta: Meta, context: Context): MetaFormat = YamlMetaFormat(meta)
+        override fun build(context: Context, meta: Meta): MetaFormat = YamlMetaFormat(meta)
 
         override val shortName: String = "yaml"
 
         override val key: Short = 0x594d //YM
 
-        private val default = YamlMetaFormat()
+        private val default = YamlMetaFormat(Meta.EMPTY)
 
         override fun writeMeta(output: Output, meta: Meta, descriptor: MetaDescriptor?): Unit =
             default.writeMeta(output, meta, descriptor)
diff --git a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlPlugin.kt b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlPlugin.kt
index 6d2215dc..1e7530f9 100644
--- a/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlPlugin.kt
+++ b/dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlPlugin.kt
@@ -27,6 +27,6 @@ public class YamlPlugin(meta: Meta) : AbstractPlugin(meta) {
         override val tag: PluginTag = PluginTag("io.yaml", group = PluginTag.DATAFORGE_GROUP)
 
         override val type: KClass<out YamlPlugin> = YamlPlugin::class
-        override fun invoke(meta: Meta, context: Context): YamlPlugin = YamlPlugin(meta)
+        override fun build(context: Context, meta: Meta): YamlPlugin = YamlPlugin(meta)
     }
 }
\ No newline at end of file
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeBuilder.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeBuilder.kt
index 62d95b01..a1afd15e 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeBuilder.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeBuilder.kt
@@ -33,7 +33,7 @@ public class EnvelopeBuilder : Envelope {
     /**
      * Construct a data binary from given builder
      */
-    public fun data(block: Output.() -> Unit) {
+    public inline fun data(block: Output.() -> Unit) {
         data = buildByteArray { block() }.asBinary()
     }
 
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeFormat.kt
index aa233384..9cb2cef0 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeFormat.kt
@@ -42,7 +42,7 @@ public interface EnvelopeFormatFactory : IOFormatFactory<Envelope>, EnvelopeForm
     override val name: Name get() = "envelope".asName()
     override val type: KType get() = typeOf<Envelope>()
 
-    override fun invoke(meta: Meta, context: Context): EnvelopeFormat
+    override fun build(context: Context, meta: Meta): EnvelopeFormat
 
     /**
      * Try to infer specific format from input and return null if the attempt is failed.
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOFormat.kt
index c6658013..7c3f8988 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOFormat.kt
@@ -102,7 +102,7 @@ public interface IOFormatFactory<T : Any> : Factory<IOFormat<T>>, Named, MetaRep
 public fun <T : Any> IOFormat<T>.toBinary(obj: T): Binary = Binary { writeObject(this, obj) }
 
 public object DoubleIOFormat : IOFormat<Double>, IOFormatFactory<Double> {
-    override fun invoke(meta: Meta, context: Context): IOFormat<Double> = this
+    override fun build(context: Context, meta: Meta): IOFormat<Double> = this
 
     override val name: Name = "double".asName()
 
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
index c72aeff6..9e1f0dd1 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
@@ -25,7 +25,7 @@ public class IOPlugin(meta: Meta) : AbstractPlugin(meta) {
         return ioFormatFactories.find { it.name == name }?.let {
             @Suppress("UNCHECKED_CAST")
             if (it.type != type) error("Format type ${it.type} is not the same as requested type $type")
-            else it.invoke(item[META_KEY] ?: Meta.EMPTY, context) as IOFormat<T>
+            else it.build(context, item[META_KEY] ?: Meta.EMPTY) as IOFormat<T>
         }
     }
 
@@ -34,17 +34,17 @@ public class IOPlugin(meta: Meta) : AbstractPlugin(meta) {
     }
 
     public fun resolveMetaFormat(key: Short, meta: Meta = Meta.EMPTY): MetaFormat? =
-        metaFormatFactories.find { it.key == key }?.invoke(meta)
+        metaFormatFactories.find { it.key == key }?.build(context, meta)
 
     public fun resolveMetaFormat(name: String, meta: Meta = Meta.EMPTY): MetaFormat? =
-        metaFormatFactories.find { it.shortName == name }?.invoke(meta)
+        metaFormatFactories.find { it.shortName == name }?.build(context, meta)
 
     public val envelopeFormatFactories: Collection<EnvelopeFormatFactory> by lazy {
         context.gather<EnvelopeFormatFactory>(ENVELOPE_FORMAT_TYPE).values
     }
 
     private fun resolveEnvelopeFormat(name: Name, meta: Meta = Meta.EMPTY): EnvelopeFormat? =
-        envelopeFormatFactories.find { it.name == name }?.invoke(meta, context)
+        envelopeFormatFactories.find { it.name == name }?.build(context, meta)
 
     public fun resolveEnvelopeFormat(item: Meta): EnvelopeFormat? {
         val name = item.string ?: item[NAME_KEY]?.string ?: error("Envelope format name not defined")
@@ -66,7 +66,7 @@ public class IOPlugin(meta: Meta) : AbstractPlugin(meta) {
         override val tag: PluginTag = PluginTag("io", group = PluginTag.DATAFORGE_GROUP)
 
         override val type: KClass<out IOPlugin> = IOPlugin::class
-        override fun invoke(meta: Meta, context: Context): IOPlugin = IOPlugin(meta)
+        override fun build(context: Context, meta: Meta): IOPlugin = IOPlugin(meta)
     }
 }
 
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/JsonMetaFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/JsonMetaFormat.kt
index 8e588666..d5beee22 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/JsonMetaFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/JsonMetaFormat.kt
@@ -41,7 +41,7 @@ public class JsonMetaFormat(private val json: Json = DEFAULT_JSON) : MetaFormat
     public companion object : MetaFormatFactory {
         public val DEFAULT_JSON: Json = Json { prettyPrint = true }
 
-        override fun invoke(meta: Meta, context: Context): MetaFormat = default
+        override fun build(context: Context, meta: Meta): MetaFormat = default
 
         override val shortName: String = "json"
         override val key: Short = 0x4a53//"JS"
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/MetaFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/MetaFormat.kt
index 2155eb9a..37b42704 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/MetaFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/MetaFormat.kt
@@ -5,6 +5,7 @@ import io.ktor.utils.io.core.Input
 import io.ktor.utils.io.core.Output
 import io.ktor.utils.io.core.use
 import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.io.MetaFormatFactory.Companion.META_FORMAT_TYPE
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
@@ -46,7 +47,7 @@ public interface MetaFormatFactory : IOFormatFactory<Meta>, MetaFormat {
 
     public val key: Short get() = name.hashCode().toShort()
 
-    override operator fun invoke(meta: Meta, context: Context): MetaFormat
+    override fun build(context: Context, meta: Meta): MetaFormat
 
     public companion object {
         public const val META_FORMAT_TYPE: String = "io.format.meta"
@@ -59,12 +60,12 @@ public fun Meta.toString(format: MetaFormat): String = buildByteArray {
     }
 }.decodeToString()
 
-public fun Meta.toString(formatFactory: MetaFormatFactory): String = toString(formatFactory())
+public fun Meta.toString(formatFactory: MetaFormatFactory): String = toString(formatFactory.build(Global, Meta.EMPTY))
 
 public fun MetaFormat.parse(str: String): Meta {
     return ByteReadPacket(str.encodeToByteArray()).use { readObject(it) }
 }
 
-public fun MetaFormatFactory.parse(str: String, formatMeta: Meta): Meta = invoke(formatMeta).parse(str)
+public fun MetaFormatFactory.parse(str: String, formatMeta: Meta): Meta = build(Global, formatMeta).parse(str)
 
 
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaggedEnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaggedEnvelopeFormat.kt
index 96c62db2..c4d281b4 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaggedEnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaggedEnvelopeFormat.kt
@@ -2,6 +2,7 @@ package space.kscience.dataforge.io
 
 import io.ktor.utils.io.core.*
 import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.io.IOFormat.Companion.META_KEY
 import space.kscience.dataforge.io.IOFormat.Companion.NAME_KEY
 import space.kscience.dataforge.meta.Meta
@@ -47,7 +48,7 @@ public class TaggedEnvelopeFormat(
         metaFormatFactory: MetaFormatFactory,
         formatMeta: Meta,
     ) {
-        val metaFormat = metaFormatFactory.invoke(formatMeta, this@TaggedEnvelopeFormat.io.context)
+        val metaFormat = metaFormatFactory.build(this@TaggedEnvelopeFormat.io.context, formatMeta)
         val metaBytes = metaFormat.toBinary(envelope.meta)
         val actualSize: ULong = (envelope.data?.size ?: 0).toULong()
         val tag = Tag(metaFormatFactory.key, metaBytes.size.toUInt() + 2u, actualSize)
@@ -118,7 +119,7 @@ public class TaggedEnvelopeFormat(
 
         override val name: Name = super.name + "tagged"
 
-        override fun invoke(meta: Meta, context: Context): EnvelopeFormat {
+        override fun build(context: Context, meta: Meta): EnvelopeFormat {
             val io = context.io
 
             val metaFormatName = meta["name"].string?.let { Name.parse(it) } ?: JsonMetaFormat.name
@@ -161,7 +162,7 @@ public class TaggedEnvelopeFormat(
             }
         }
 
-        private val default by lazy { invoke() }
+        private val default by lazy { build(Global, Meta.EMPTY) }
 
         override fun readPartial(input: Input): PartialEnvelope =
             default.run { readPartial(input) }
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaglessEnvelopeFormat.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaglessEnvelopeFormat.kt
index bc8031d7..56e3f582 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaglessEnvelopeFormat.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaglessEnvelopeFormat.kt
@@ -2,6 +2,7 @@ package space.kscience.dataforge.io
 
 import io.ktor.utils.io.core.*
 import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.io.IOFormat.Companion.META_KEY
 import space.kscience.dataforge.io.IOFormat.Companion.NAME_KEY
 import space.kscience.dataforge.meta.Meta
@@ -34,7 +35,7 @@ public class TaglessEnvelopeFormat(
         metaFormatFactory: MetaFormatFactory,
         formatMeta: Meta
     ) {
-        val metaFormat = metaFormatFactory(formatMeta, this.io.context)
+        val metaFormat = metaFormatFactory.build(this.io.context, formatMeta)
 
         //printing header
         output.writeRawString(TAGLESS_ENVELOPE_HEADER + "\r\n")
@@ -193,9 +194,9 @@ public class TaglessEnvelopeFormat(
 
         override val name: Name = TAGLESS_ENVELOPE_TYPE.asName()
 
-        override fun invoke(meta: Meta, context: Context): EnvelopeFormat = TaglessEnvelopeFormat(context.io, meta)
+        override fun build(context: Context, meta: Meta): EnvelopeFormat = TaglessEnvelopeFormat(context.io, meta)
 
-        private val default by lazy { invoke() }
+        private val default by lazy { build(Global, Meta.EMPTY) }
 
         override fun readPartial(input: Input): PartialEnvelope =
             default.run { readPartial(input) }
diff --git a/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/DataPropagationTest.kt b/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/DataPropagationTest.kt
index f88c6f59..d3f58a51 100644
--- a/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/DataPropagationTest.kt
+++ b/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/DataPropagationTest.kt
@@ -34,7 +34,7 @@ class DataPropagationTestPlugin : WorkspacePlugin() {
 
         override val type: KClass<out DataPropagationTestPlugin> = DataPropagationTestPlugin::class
 
-        override fun invoke(meta: Meta, context: Context): DataPropagationTestPlugin = DataPropagationTestPlugin()
+        override fun build(context: Context, meta: Meta): DataPropagationTestPlugin = DataPropagationTestPlugin()
 
         override val tag: PluginTag = PluginTag("Test")
     }
diff --git a/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/SimpleWorkspaceTest.kt b/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/SimpleWorkspaceTest.kt
index a1ce6ae1..39d1d5a1 100644
--- a/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/SimpleWorkspaceTest.kt
+++ b/dataforge-workspace/src/jvmTest/kotlin/space/kscience/dataforge/workspace/SimpleWorkspaceTest.kt
@@ -22,7 +22,7 @@ import kotlin.test.assertTrue
  * Make a fake-factory for a one single plugin. Useful for unique or test plugins
  */
 public inline fun <reified P : Plugin> P.toFactory(): PluginFactory<P> = object : PluginFactory<P> {
-    override fun invoke(meta: Meta, context: Context): P = this@toFactory
+    override fun build(context: Context, meta: Meta): P = this@toFactory
 
     override val tag: PluginTag = this@toFactory.tag
     override val type: KClass<out P> = P::class
diff --git a/gradle.properties b/gradle.properties
index 5c9b6463..8687cb20 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,3 +7,6 @@ kotlin.parallel.tasks.in.project=true
 #kotlin.mpp.enableGranularSourceSetsMetadata=true
 #kotlin.native.enableDependencyPropagation=false
 kotlin.mpp.stability.nowarn=true
+
+publishing.github=false
+publishing.sonatype=false