[Keyframe]

looks really cool and I can see a few ways how to use it, especially deploy part which seems unique. Looking forward to more fleshed-out documentation, especially seemingly crucial Streams and Singletons and Optionals part.

[shadaj]

You caught us in our docs-writing week :) In the meantime, the Rustdoc for streams are fairly complete: https://hydro.run/rustdoc/hydro_lang/stream/struct.Stream