foldkit-primitives

Ready-made pieces of browser, clock, device, and interaction state for a Foldkit application: a media query, a timer, a socket, an undo stack, a roving tab stop, a resize observer, a clipboard write. Each comes in the shape Foldkit already has, so adding one adds no store, no hook, and no second reducer. The fact lives in your Model, arrives as a Message, and replays like everything else.

import { MediaQuery } from 'foldkit-primitives/media'

The browser reports; the Model owns. A primitive observes something and hands your update a Message. What your application keeps, and what it does about it, stays yours.