1. Fantastic for non-browser clients. The community has native channel clients for objc/swift/c++/rust/java so you can do real-time things natively, and course do standard json/graphql. 2. Yes, we scale vertically and horizontally. Because we have distributed pubsub and messaging baked-in, the horizontal scaling story just works – you don't have to rearchitect your app to add more servers :)