Explore the ongoing effort to port and cross-compile Akka, a major Scala framework, to Scala.js in this conference talk from Scala Days Berlin 2016. Discover how this project aims to unify client and server development by providing a consistent abstraction layer for handling distributed and concurrent runtimes. Learn about the challenges and benefits of adapting Akka for use outside the JVM, including taming UI complexity and simplifying concurrent code on Node.js. Gain insights into the modularization process, consensus algorithms, WebSocket management, and the differences between JVM and server implementations. Examine the impact on Java Standard Library usage, actor fields, annotations, serialization, and configuration. Review statistics on lines of code and discuss future plans for expanding Akka's capabilities across different platforms.