In the last Road To KiwiEngine post, I talked about Juice getting close to version 1.0.
It takes design intent, project configuration, and attribute-based styling rules and turns those things into the visual language of an application.
Parts of the interface need to update without rebuilding everything around them.
That's where another KiwiEngine library has been quietly becoming one of the more complete pieces of the ecosystem.
They're related because they both participate in the user interface, but I don't want them becoming the same system.
Juice shouldn't need to understand application state just because an element has styling.
Sig shouldn't need to understand a project's design system just because something on the screen changed.
And it doesn't require the entire application to become one giant state-management problem.
When you're building a framework, it's tempting to make every system aware of every other system.
But communication doesn't require collapsing them into one enormous abstraction.
That matters because JSX gives me a really expressive way to describe interfaces while Sig controls how those interfaces actually become reactive.
Instead of depending on another UI framework to interpret the application, KiwiEngine can have a rendering model that belongs to its own architecture.
When I click something and a value changes, I don't want to think about the rendering engine every time.
I don't want every feature to require another conversation about state synchronization.
That's where the implementation has to prove that the abstraction actually works.
It doesn't need to absorb every capability an application might eventually require.
That means improvements to one system don't necessarily require redesigning everything else.
Now I have an interface that can express design intent and react to application state.