diff --git a/build.gradle.kts b/build.gradle.kts
index 0066798..dc12f58 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -10,29 +10,30 @@ subprojects {
     val annotationProcessor by configurations
     val testCompileOnly by configurations
     val testAnnotationProcessor by configurations
+    val runtimeOnly by configurations
 
     repositories {
         mavenCentral()
     }
 
     dependencies {
-        implementation("org.jetbrains:annotations:22.0.0")
-        implementation("com.google.code.gson:gson:2.8.8")
+        implementation(Annotations.id)
+        implementation(Gson.id)
 
-        implementation("org.apache.logging.log4j:log4j-api:2.14.1")
-        implementation("org.apache.logging.log4j:log4j-core:2.14.1")
-        implementation("org.apache.logging.log4j:log4j-slf4j-impl:2.14.1")
+        implementation(Log4j2.api)
+        runtimeOnly(Log4j2.core)
+        runtimeOnly(Log4j2.slf4j)
 
-        testImplementation("org.junit.jupiter:junit-jupiter:5.8.1")
-        testImplementation("org.junit.jupiter:junit-jupiter-engine:5.8.1")
-        testImplementation("org.mockito:mockito-inline:4.0.0")
-        testImplementation("org.mockito:mockito-junit-jupiter:4.0.0")
+        testImplementation(JUnit.jupiter)
+        testImplementation(JUnit.jupiter_engine)
+        testImplementation(Mockito.inline)
+        testImplementation(Mockito.jupiter)
 
-        compileOnly("org.projectlombok:lombok:1.18.22")
-        annotationProcessor("org.projectlombok:lombok:1.18.22")
+        compileOnly(Lombok.id)
+        annotationProcessor(Lombok.id)
 
-        testCompileOnly("org.projectlombok:lombok:1.18.22")
-        testAnnotationProcessor("org.projectlombok:lombok:1.18.22")
+        testCompileOnly(Lombok.id)
+        testAnnotationProcessor(Lombok.id)
     }
 
     tasks {
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
new file mode 100644
index 0000000..6488c73
--- /dev/null
+++ b/buildSrc/build.gradle.kts
@@ -0,0 +1,11 @@
+plugins {
+    kotlin("jvm") version "1.6.0"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation(gradleApi())
+}
\ No newline at end of file
diff --git a/buildSrc/src/main/kotlin/Dependencies.kt b/buildSrc/src/main/kotlin/Dependencies.kt
new file mode 100644
index 0000000..dce112f
--- /dev/null
+++ b/buildSrc/src/main/kotlin/Dependencies.kt
@@ -0,0 +1,88 @@
+@file:Suppress("MemberVisibilityCanBePrivate")
+
+object Log4j2 {
+    const val version = "2.14.1"
+    const val group = "org.apache.logging.log4j"
+
+    const val api = "$group:log4j-api:$version"
+    const val core = "$group:log4j-core:$version"
+    const val slf4j = "$group:log4j-slf4j-impl:$version"
+}
+
+object Lombok {
+    const val version = "1.18.22"
+    const val group = "org.projectlombok"
+
+    const val id = "$group:lombok:$version"
+}
+
+object JUnit {
+    const val version = "5.8.1"
+    const val group = "org.junit.jupiter"
+
+    const val jupiter = "$group:junit-jupiter:$version"
+    const val jupiter_engine = "$group:junit-jupiter-engine:$version"
+}
+
+object Mockito {
+    const val version = "4.0.0"
+    const val group = "org.mockito"
+
+    const val inline = "$group:mockito-inline:$version"
+    const val jupiter = "$group:mockito-junit-jupiter:$version"
+}
+
+object Gson {
+    const val version = "2.8.8"
+    const val group = "com.google.code.gson"
+
+    const val id = "$group:gson:$version"
+}
+
+object Annotations {
+    const val version = "22.0.0"
+    const val group = "org.jetbrains"
+
+    const val id = "$group:annotations:$version"
+}
+
+object LibGDX {
+    const val version = "1.10.0"
+    const val group = "com.badlogicgames.gdx"
+
+    const val api = "$group:gdx:$version"
+    const val box2d = "$group:gdx-box2d:$version"
+
+    const val backend_lwjgl3 = "$group:gdx-backend-lwjgl3:$version"
+    const val platform_desktop = "$group:gdx-platform:$version:natives-desktop"
+    const val box2d_platform_desktop = "$group:gdx-box2d-platform:$version:natives-desktop"
+
+    const val tools = "$group:gdx-tools:$version"
+}
+
+object PicoCLI {
+    const val version = "4.6.2"
+    const val group = "info.picocli"
+
+    const val core = "$group:picocli:$version"
+    const val shell_jline3 = "$group:picocli-shell-jline3:$version"
+    const val codegen = "$group:picocli-codegen:$version"
+}
+
+object JLine {
+    const val version = "3.20.0"
+    const val group = "org.jline"
+    const val id = "$group:jline:$version"
+}
+
+object Jansi {
+    const val version = "2.4.0"
+    const val group = "org.fusesource.jansi"
+    const val id = "$group:jansi:$version"
+}
+
+object JavaWebSocket {
+    const val version = "1.5.2"
+    const val group = "org.java-websocket"
+    const val id = "$group:Java-WebSocket:$version"
+}
\ No newline at end of file
diff --git a/wizard-client/wizard-client-cli/build.gradle.kts b/wizard-client/wizard-client-cli/build.gradle.kts
new file mode 100644
index 0000000..400f764
--- /dev/null
+++ b/wizard-client/wizard-client-cli/build.gradle.kts
@@ -0,0 +1,19 @@
+plugins {
+    application
+}
+
+dependencies {
+    implementation(JLine.id)
+    implementation(Jansi.id)
+    implementation(JavaWebSocket.id)
+
+    implementation(PicoCLI.core)
+    implementation(PicoCLI.shell_jline3) {
+        exclude(group = JLine.group) // prevent duplicates with org.jline:jline)
+    }
+    annotationProcessor(PicoCLI.codegen)
+}
+
+application {
+    mainClass.set("eu.jonahbauer.wizard.client.cli.Client")
+}
\ No newline at end of file
diff --git a/wizard-client/wizard-client-libgdx/build.gradle.kts b/wizard-client/wizard-client-libgdx/build.gradle.kts
index d06347c..be4cca3 100644
--- a/wizard-client/wizard-client-libgdx/build.gradle.kts
+++ b/wizard-client/wizard-client-libgdx/build.gradle.kts
@@ -4,9 +4,9 @@ project(":wizard-client:wizard-client-libgdx:desktop") {
 
     dependencies {
         implementation(project(":wizard-client:wizard-client-libgdx:core"))
-        api("com.badlogicgames.gdx:gdx-backend-lwjgl3:1.10.0")
-        api("com.badlogicgames.gdx:gdx-platform:1.10.0:natives-desktop")
-        api("com.badlogicgames.gdx:gdx-box2d-platform:1.10.0:natives-desktop")
+        api(LibGDX.backend_lwjgl3)
+        api(LibGDX.platform_desktop)
+        api(LibGDX.box2d_platform_desktop)
     }
 }
 
@@ -14,7 +14,7 @@ project(":wizard-client:wizard-client-libgdx:core") {
     apply(plugin = "java-library")
 
     dependencies {
-        api( "com.badlogicgames.gdx:gdx:1.10.0")
-        api("com.badlogicgames.gdx:gdx-box2d:1.10.0")
+        api( LibGDX.api)
+        api(LibGDX.box2d)
     }
 }