diff --git a/build.gradle b/build.gradle
index a293227..877b19d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,9 +2,9 @@ plugins {
     id 'maven-publish'
     alias catalog.plugins.envelope apply false
     alias catalog.plugins.lombok apply false
-    alias catalog.plugins.multi.release.jar
 }
 
+
 allprojects {
     apply plugin: 'java-library'
     apply plugin: catalog.plugins.lombok.get().pluginId
@@ -12,6 +12,10 @@ allprojects {
     group = "net.woggioni"
     version = getProperty('wson.version')
 
+    java {
+        modularity.inferModulePath = true
+    }
+
     lombok {
         version = catalog.versions.lombok.get()
     }
@@ -39,11 +43,20 @@ allprojects {
     test {
         useJUnitPlatform()
     }
+
+    tasks.named(JavaPlugin.COMPILE_JAVA_TASK_NAME, JavaCompile) {
+        options.release = 17
+    }
+
+    pluginManager.withPlugin(catalog.plugins.kotlin.jvm.get().pluginId) {
+        compileKotlin {
+            kotlinOptions.with {
+                jvmTarget = '17'
+            }
+        }
+    }
 }
 
-ext {
-    setProperty('jpms.module.name', 'net.woggioni.wson')
-}
 
 dependencies {
     implementation catalog.jwo
diff --git a/settings.gradle b/settings.gradle
index 0fe099b..34886e8 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -31,7 +31,15 @@ dependencyResolutionManagement {
 
 rootProject.name = 'wson'
 
-def includeDirs = ['antlr', 'benchmark', 'test-utils', 'wson-cli', 'wson-w3c-json', 'wcfg']
+def includeDirs = [
+    'antlr',
+    'benchmark',
+    'test-utils',
+    'wson-cli',
+    'wson-w3c-json',
+    'wcfg',
+    'wcfg-cli'
+]
 
 includeDirs.each {
     include(it)
diff --git a/src/java9/java/module-info.java b/src/main/java/module-info.java
similarity index 82%
rename from src/java9/java/module-info.java
rename to src/main/java/module-info.java
index a7cb49a..592b169 100644
--- a/src/java9/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -1,4 +1,5 @@
 module net.woggioni.wson {
+    requires static lombok;
     requires net.woggioni.jwo;
 
     exports net.woggioni.wson.xface;
@@ -7,4 +8,5 @@ module net.woggioni.wson {
     exports net.woggioni.wson.serialization;
     exports net.woggioni.wson.serialization.json;
     exports net.woggioni.wson.serialization.binary;
+    exports net.woggioni.wson.traversal;
 }
\ No newline at end of file
diff --git a/src/main/java9/module-info.java b/src/main/java9/module-info.java
deleted file mode 100644
index a7cb49a..0000000
--- a/src/main/java9/module-info.java
+++ /dev/null
@@ -1,10 +0,0 @@
-module net.woggioni.wson {
-    requires net.woggioni.jwo;
-
-    exports net.woggioni.wson.xface;
-    exports net.woggioni.wson.value;
-    exports net.woggioni.wson.exception;
-    exports net.woggioni.wson.serialization;
-    exports net.woggioni.wson.serialization.json;
-    exports net.woggioni.wson.serialization.binary;
-}
\ No newline at end of file
diff --git a/wcfg-cli/build.gradle b/wcfg-cli/build.gradle
new file mode 100644
index 0000000..e01474d
--- /dev/null
+++ b/wcfg-cli/build.gradle
@@ -0,0 +1,12 @@
+plugins {
+    alias(catalog.plugins.envelope)
+}
+
+dependencies {
+    implementation catalog.picocli
+    implementation project(':wcfg')
+}
+
+envelopeJar {
+    mainClass = 'net.woggioni.wson.wcfg.cli.Main'
+}
\ No newline at end of file
diff --git a/wcfg-cli/src/main/java/module-info.java b/wcfg-cli/src/main/java/module-info.java
new file mode 100644
index 0000000..f44ea64
--- /dev/null
+++ b/wcfg-cli/src/main/java/module-info.java
@@ -0,0 +1,3 @@
+module net.woggioni.wson.wcfg.cli {
+    requires net.woggioni.wson.wcfg;
+}
\ No newline at end of file
diff --git a/wcfg-cli/src/main/java/net/woggioni/wson/wcfg/cli/Main.java b/wcfg-cli/src/main/java/net/woggioni/wson/wcfg/cli/Main.java
new file mode 100644
index 0000000..2ffb8f8
--- /dev/null
+++ b/wcfg-cli/src/main/java/net/woggioni/wson/wcfg/cli/Main.java
@@ -0,0 +1,7 @@
+package net.woggioni.wson.wcfg.cli;
+
+public class Main {
+    public void main(String[] args) {
+        System.out.println();
+    }
+}
diff --git a/wcfg/build.gradle b/wcfg/build.gradle
index 68026f9..a61be02 100644
--- a/wcfg/build.gradle
+++ b/wcfg/build.gradle
@@ -13,4 +13,4 @@ dependencies {
 generateGrammarSource {
     maxHeapSize = "64m"
     arguments += ['-package', 'net.woggioni.wson.wcfg']
-}
\ No newline at end of file
+}
diff --git a/wcfg/src/main/java/module-info.java b/wcfg/src/main/java/module-info.java
new file mode 100644
index 0000000..0fa128c
--- /dev/null
+++ b/wcfg/src/main/java/module-info.java
@@ -0,0 +1,8 @@
+module net.woggioni.wson.wcfg {
+    requires static lombok;
+    requires static org.antlr.antlr4.runtime;
+
+    requires net.woggioni.jwo;
+    requires net.woggioni.wson;
+    exports net.woggioni.wson.wcfg;
+}
\ No newline at end of file
diff --git a/wcfg/src/test/java/net/woggioni/wson/wcfg/ParseTest.java b/wcfg/src/test/java/net/woggioni/wson/wcfg/ParseTest.java
index d61aa47..0a5e017 100644
--- a/wcfg/src/test/java/net/woggioni/wson/wcfg/ParseTest.java
+++ b/wcfg/src/test/java/net/woggioni/wson/wcfg/ParseTest.java
@@ -7,6 +7,7 @@ import org.antlr.v4.runtime.CharStreams;
 import org.antlr.v4.runtime.CodePointCharStream;
 import org.antlr.v4.runtime.CommonTokenStream;
 import org.antlr.v4.runtime.tree.ParseTreeWalker;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
diff --git a/wcfg/src/test/resources/recursive.wcfg b/wcfg/src/test/resources/recursive.wcfg
index 12ae3f1..18735d9 100644
--- a/wcfg/src/test/resources/recursive.wcfg
+++ b/wcfg/src/test/resources/recursive.wcfg
@@ -1,4 +1,6 @@
 value1 := {
     "key" : "value",
     "myself" : value1
-};
\ No newline at end of file
+};
+
+value2 := [value1];
\ No newline at end of file
diff --git a/wson-cli/build.gradle b/wson-cli/build.gradle
index 85121f5..497ecf8 100644
--- a/wson-cli/build.gradle
+++ b/wson-cli/build.gradle
@@ -2,11 +2,6 @@ plugins {
     id 'maven-publish'
     alias catalog.plugins.envelope
     alias catalog.plugins.kotlin.jvm
-    alias catalog.plugins.multi.release.jar
-}
-
-ext {
-    setProperty('jpms.module.name', 'net.woggioni.wson.cli')
 }
 
 dependencies {
@@ -21,16 +16,6 @@ envelopeJar {
     mainModule = 'net.woggioni.wson.cli'
 }
 
-java {
-    modularity.inferModulePath = true
-}
-
-compileKotlin {
-    kotlinOptions.with {
-        jvmTarget = '1.8'
-    }
-}
-
 publishing {
     repositories {
         maven {
@@ -44,8 +29,3 @@ publishing {
     }
 }
 
-tasks.register('listConfigurations') {
-    configurations.each {
-        println(it.name)
-    }
-}
diff --git a/wson-cli/src/main/java9/net/woggioni/wson/cli/Foo.java b/wson-cli/src/main/java9/net/woggioni/wson/cli/Foo.java
deleted file mode 100644
index b33c521..0000000
--- a/wson-cli/src/main/java9/net/woggioni/wson/cli/Foo.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package net.woggioni.wson.cli;
-
-public class Foo {
-}