One of the powers of Zimbra is the ability to be extended with custom functionality. The Zimbra front-end can be extended with JavaScript Zimlets and the back-end can be extended with Java extensions.

Compiling Java code to WebAssembly is an efficient way to get it running in a web browser, and you get a serious performance boost. Let's check it out. WebAssembly, or Wasm, provides a generalized, ...