diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5e84f3f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.gradle/
+.idea/
+kotlin/sample/build/
+kotlin/library/build/
+kotlin/build/
diff --git a/kotlin/build.gradle b/kotlin/build.gradle
index d614bc2..23f1b7d 100644
--- a/kotlin/build.gradle
+++ b/kotlin/build.gradle
@@ -2,7 +2,7 @@
 
 buildscript {
     ext {
-        kotlin_version = '1.1.51'
+        kotlin_version = '1.2.31'
     }
     repositories {
         mavenCentral()
@@ -10,7 +10,6 @@ buildscript {
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.junit.platform:junit-platform-gradle-plugin:1.0.1"
     }
 }
 
@@ -18,35 +17,12 @@ apply plugin: "idea"
 apply plugin: "java"
 apply plugin: "kotlin"
 apply plugin: "application"
-apply plugin: "org.junit.platform.gradle.plugin"
 
-sourceSets {
-    main.java.srcDirs += 'src/'
-}
-
-junitPlatform {
-    filters {
-        engines {
-            include 'spek'
-        }
+allprojects {
+    repositories {
+        mavenCentral()
+        jcenter()
     }
 }
 
-mainClassName = "LogEvent"
-
-repositories {
-    mavenCentral()
-    jcenter()
-    maven { url "http://dl.bintray.com/jetbrains/spek" }
-}
-
-dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
-    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-    compile 'com.github.kittinunf.fuel:fuel:1.11.0'
-
-    testCompile 'org.jetbrains.kotlin:kotlin-test'
-    testCompile 'org.jetbrains.spek:spek-api:1.1.5'
-    testCompile 'org.junit.platform:junit-platform-runner:1.0.1'
-    testRuntime 'org.jetbrains.spek:spek-junit-platform-engine:1.1.5'
-}
+mainClassName = "vacuumanalytics.LogEventKt"
diff --git a/kotlin/library/build.gradle b/kotlin/library/build.gradle
new file mode 100644
index 0000000..65f0788
--- /dev/null
+++ b/kotlin/library/build.gradle
@@ -0,0 +1,57 @@
+// Copyright 2018 Sourcerer Inc. All Rights Reserved.
+
+buildscript {
+    ext {
+        kotlin_version = '1.1.51'
+    }
+    repositories {
+        mavenCentral()
+        jcenter()
+    }
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+apply plugin: "idea"
+apply plugin: "java"
+apply plugin: "kotlin"
+apply plugin: "application"
+
+mainClassName = "vacuumanalytics.LogEventKt"
+
+repositories {
+    mavenCentral()
+    jcenter()
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
+    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
+    compile 'com.github.kittinunf.fuel:fuel:1.11.0'
+}
+
+repositories {
+    mavenCentral()
+    jcenter()
+    flatDir {
+        dirs 'libs'
+    }
+}
+
+// Include dependent libraries in archive.
+jar {
+    manifest {
+        attributes "Main-Class": "$mainClassName"
+    }
+    from {
+        configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
+    } {
+        exclude "META-INF/*.SF"
+        exclude "META-INF/*.DSA"
+        exclude "META-INF/*.RSA"
+    }
+
+    baseName 'library'
+}
diff --git a/kotlin/src/LogEvent.kt b/kotlin/library/src/main/kotlin/LogEvent.kt
similarity index 98%
rename from kotlin/src/LogEvent.kt
rename to kotlin/library/src/main/kotlin/LogEvent.kt
index c83ae89..8344855 100644
--- a/kotlin/src/LogEvent.kt
+++ b/kotlin/library/src/main/kotlin/LogEvent.kt
@@ -1,7 +1,7 @@
 // Copyright 2018 Sourcerer Inc. All Rights Reserved.
 // Author: Alexander Surkov (alex@sourcerer.io)
 
-package sourcererio.vacuumanalytics
+package vacuumanalytics
 
 import com.github.kittinunf.fuel.core.FuelError
 import com.github.kittinunf.fuel.core.FuelManager
diff --git a/kotlin/sample/build.gradle b/kotlin/sample/build.gradle
new file mode 100644
index 0000000..79b323f
--- /dev/null
+++ b/kotlin/sample/build.gradle
@@ -0,0 +1,52 @@
+// Copyright 2018 Sourcerer Inc. All Rights Reserved.
+
+buildscript {
+    ext {
+        kotlin_version = '1.1.51'
+    }
+    repositories {
+        mavenCentral()
+        jcenter()
+    }
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+apply plugin: "idea"
+apply plugin: "java"
+apply plugin: "kotlin"
+apply plugin: "application"
+
+sourceSets {
+    main.java.srcDirs += 'src/main/'
+}
+
+repositories {
+    mavenCentral()
+    jcenter()
+}
+
+dependencies {
+    compile project(':library')
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
+    /*compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"*/
+}
+
+mainClassName = "sample.MainKt"
+
+jar {
+    manifest {
+        attributes "Main-Class": "$mainClassName"
+    }
+
+    from {
+        configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
+    } {
+        exclude "META-INF/*.SF"
+        exclude "META-INF/*.DSA"
+        exclude "META-INF/*.RSA"
+    }
+
+    baseName 'sample'
+}
diff --git a/kotlin/sample/src/main/kotlin/Main.kt b/kotlin/sample/src/main/kotlin/Main.kt
new file mode 100644
index 0000000..8e69675
--- /dev/null
+++ b/kotlin/sample/src/main/kotlin/Main.kt
@@ -0,0 +1,17 @@
+// Copyright 2018 Sourcerer Inc. All Rights Reserved.
+// Author: Alexander Surkov (alex@sourcerer.io)
+
+package sample
+
+import com.github.kittinunf.fuel.core.Response
+import java.net.URL
+import vacuumanalytics.LogEvent
+
+fun main(argv : Array<String>) {
+  val fakeResponse = Response(
+    url = URL("http://0.0.0.0"),
+    headers = mapOf("Set-Cookie" to listOf("sessionid=kotlintst"))
+  )
+  val logger = LogEvent("http://0.0.0.0:8080", fakeResponse, "sessionid")
+  logger.error("B'eba-%pBeba")
+}
diff --git a/kotlin/settings.gradle b/kotlin/settings.gradle
new file mode 100644
index 0000000..a882e41
--- /dev/null
+++ b/kotlin/settings.gradle
@@ -0,0 +1 @@
+include 'library', 'sample'