diff --git a/.idea/artifacts/chatrum_js_1_0_SNAPSHOT.xml b/.idea/artifacts/chatrum_js_1_0_SNAPSHOT.xml
new file mode 100644
index 0000000..6a20bbd
--- /dev/null
+++ b/.idea/artifacts/chatrum_js_1_0_SNAPSHOT.xml
@@ -0,0 +1,6 @@
+<component name="ArtifactManager">
+  <artifact type="jar" name="chatrum-js-1.0-SNAPSHOT">
+    <output-path>$PROJECT_DIR$/build/libs</output-path>
+    <root id="archive" name="chatrum-js-1.0-SNAPSHOT.jar" />
+  </artifact>
+</component>
\ No newline at end of file
diff --git a/.idea/artifacts/chatrum_jvm_1_0_SNAPSHOT.xml b/.idea/artifacts/chatrum_jvm_1_0_SNAPSHOT.xml
new file mode 100644
index 0000000..9782be3
--- /dev/null
+++ b/.idea/artifacts/chatrum_jvm_1_0_SNAPSHOT.xml
@@ -0,0 +1,6 @@
+<component name="ArtifactManager">
+  <artifact type="jar" name="chatrum-jvm-1.0-SNAPSHOT">
+    <output-path>$PROJECT_DIR$/build/libs</output-path>
+    <root id="archive" name="chatrum-jvm-1.0-SNAPSHOT.jar" />
+  </artifact>
+</component>
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 14746e7..e653f1e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="" />
+        <option name="gradleJvm" value="temurin-22" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index d033845..9881a54 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_22" default="true" project-jdk-name="temurin-22" project-jdk-type="JavaSDK">
+  <component name="FrameworkDetectionExcludesConfiguration">
+    <file type="web" url="file://$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="temurin-22" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.yarnrc b/.yarnrc
new file mode 100644
index 0000000..3ef1f66
--- /dev/null
+++ b/.yarnrc
@@ -0,0 +1 @@
+npmRegistryServer: "https://repository.thundernetwork.org/repository/npm-central/"
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index e333111..e98027a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,18 +1,52 @@
 plugins {
-    kotlin("jvm") version "2.0.20"
+    kotlin("multiplatform") version "2.0.20"
+    id("maven-publish")
+    id("signing")
 }
 
-group = "org.thundernetwork"
+group = "org.thundernetwork.chatrum"
 version = "1.0-SNAPSHOT"
 
 repositories {
-    mavenCentral()
+    maven("https://repository.thundernetwork.org/repository/maven-central/")
 }
 
 dependencies {
-    testImplementation(kotlin("test"))
 }
 
-tasks.test {
-    useJUnitPlatform()
+kotlin {
+    jvm {
+        withSourcesJar()
+    }
+    js (IR) {
+        nodejs {}
+        binaries.library()
+        generateTypeScriptDefinitions()
+        useEsModules()
+
+        compilations["main"].packageJson {
+            customField("types", "kotlin/${project.name}.d.ts")
+        }
+    }
+
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+            }
+        }
+        val jvmMain by getting {
+            dependencies {
+            }
+        }
+        val jsMain by getting {
+            dependencies {
+            }
+        }
+    }
+
+    js {
+        compilations["main"].packageJson {
+            customField("homepage", "https://source.thundernetwork.org/ThunderNetworkRaD/chatrum")
+        }
+    }
 }
\ No newline at end of file
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 572e910..fa2fc56 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,2 +1,6 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+
 rootProject.name = "chatrum"
 
diff --git a/src/commonMain/kotlin/EventEmitter.kt b/src/commonMain/kotlin/EventEmitter.kt
new file mode 100644
index 0000000..f5ba293
--- /dev/null
+++ b/src/commonMain/kotlin/EventEmitter.kt
@@ -0,0 +1,17 @@
+package org.thundernetwork.chatrum
+
+class EventEmitter {
+    private val listeners: MutableMap<String, MutableList<(Any) -> Unit>> = mutableMapOf()
+
+    fun on(eventName: String, listener: (Any) -> Unit) {
+        listeners.getOrPut(eventName) { mutableListOf() }.add(listener)
+    }
+
+    fun off(eventName: String, listener: (Any) -> Unit) {
+        listeners[eventName]?.remove(listener)
+    }
+
+    fun emit(eventName: String, data: Any) {
+        listeners[eventName]?.forEach { it(data) }
+    }
+}
\ No newline at end of file
diff --git a/src/commonMain/kotlin/Main.kt b/src/commonMain/kotlin/Main.kt
new file mode 100644
index 0000000..7ea7b23
--- /dev/null
+++ b/src/commonMain/kotlin/Main.kt
@@ -0,0 +1,2 @@
+package org.thundernetwork.chatrum
+
diff --git a/src/jsMain/kotlin/Main.kt b/src/jsMain/kotlin/Main.kt
new file mode 100644
index 0000000..fa9b235
--- /dev/null
+++ b/src/jsMain/kotlin/Main.kt
@@ -0,0 +1,4 @@
+@file:OptIn(ExperimentalJsExport::class)
+@file:JsExport
+import kotlin.js.ExperimentalJsExport
+import kotlin.js.JsExport
\ No newline at end of file
diff --git a/src/jvmMain/kotlin/Main.kt b/src/jvmMain/kotlin/Main.kt
new file mode 100644
index 0000000..a04d10d
--- /dev/null
+++ b/src/jvmMain/kotlin/Main.kt
@@ -0,0 +1 @@
+package org.thundernetwork.chatrum
\ No newline at end of file
diff --git a/src/main/kotlin/Main.kt b/src/main/kotlin/Main.kt
deleted file mode 100644
index 063c8ce..0000000
--- a/src/main/kotlin/Main.kt
+++ /dev/null
@@ -1,16 +0,0 @@
-package org.thundernetwork
-
-//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
-// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
-fun main() {
-    val name = "Kotlin"
-    //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
-    // to see how IntelliJ IDEA suggests fixing it.
-    println("Hello, " + name + "!")
-
-    for (i in 1..5) {
-        //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
-        // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
-        println("i = $i")
-    }
-}
\ No newline at end of file