dependencies {
  // ...
  implementation "com.badlogicgames.gdx:gdx:$gdxVersion:sources"
  implementation "com.github.MrStahlfelge.gdx-websockets:core:$wsVersion:sources"
  implementation "com.github.MrStahlfelge.gdx-websockets:html:$wsVersion"
  implementation "com.github.MrStahlfelge.gdx-websockets:html:$wsVersion:sources"

  implementation project(':core')

  // ...
}