One core, two frameworks
State, keyboard handling, ARIA and focus management live once in plain TypeScript. Vue and React are thin adapters that bind reactivity and render.
kanso-ui
The accessibility lives once. The frameworks are skins.
Headless by default
Components expose data-part and data-state. The stylesheet is opt-in, and
the library ships no fonts.
Keyboard tested, not just scanned
axe cannot detect a broken arrow-key handler or a leaking focus trap. Every interactive component asserts its full keyboard map in both frameworks.
SSR safe
IDs come from the framework’s own stable primitive, never generated in core — the mismatch that breaks naive headless libraries.