Wyvern

wyvern is a reactive JavaScript transpiler that compiles reactive syntax into standard JavaScript. At version 0.2.0, it is in early development with an unstable API. It differentiates itself by providing a declarative reactive programming model that compiles to efficient vanilla JS, targeting developers who want reactivity without a runtime library. The package is meant to be used as a build tool (transpiler) and is not designed for runtime use. Release cadence is unknown as the project is new.