Sig.js Reaches Version 1.0 as a Reactive UI Library Built for KiwiEngine

Sig.js, a reactive UI library developed as part of the KiwiEngine project, has been released at version 1.0 and is now available on npm. Its core is built on signals paired with a lightweight JSX rendering model, aimed at keeping reactive interfaces understandable without a heavy surrounding framework. The library bundles reactive signals and effects, memoized derived values, a JSX runtime, component mounting and cleanup, reactive DOM behavior, a lightweight router, and integration with the Juice styling engine. The author presents Sig as a focused reactive UI engine rather than a full application framework, separating the description of the interface from the reactive state behavior. The release marks the point where the author's earlier design writing on KiwiEngine became a usable, installable package.