We call our core stack LIQUID, and it’s the core of our applications that we’ve ported to Rust. It covers networking, video codec, and more. It’s majority Rust on Windows, and eventually will be majority Rust on macOS & iPadOS in the future, as we start replacing more than just networking with the Rust version on those platforms.We use Rust as our core library, providing a cross-platform engine for all our applications. We’ve also written some internal tools to help with various tasks in Rust.