Given that the last comment in this thread was back in March, it might have been missed that in April, Oracle Labs announced an official Java-to-WASM backend for GraalVM Native Image. This is a significant development, as it effectively covers most (if not all) WebAssembly compilation use cases for Scala and other JVM languages, including JavaScript interoperability and, more importantly, enterprise-grade support. Source: The Future of Write Once, Run Anywhere: From Java to WebAssembly | Wasm...