# useReducedMotionConfig > Resolve the reduced-motion policy by combining a parent override with the OS preference. Reactive via Svelte 5 runes. **Source:** [https://motion.svelte.page/examples/use-reduced-motion-config](https://motion.svelte.page/examples/use-reduced-motion-config) **Markdown mirror:** [https://motion.svelte.page/examples/use-reduced-motion-config.md](https://motion.svelte.page/examples/use-reduced-motion-config.md) --- This mirror preserves the prose, implementation notes, and runnable Svelte source behind the live example page. ## FIG-001: resolve reduced motion. `useReducedMotionConfig()` returns a `{ current, subscribe }` object resolving the active policy: a nearest `` ancestor wins, falling back to the OS-level `prefers-reduced-motion` setting when the policy is `"user"`. **Metadata:** tag: `HOOK` | pattern: `config + a11y resolution` ### Notes - Three policies on ` `: `'never'` never reduces, `'always'` always reduces, `'user'` mirrors the OS preference. The default with no ancestor is `'never'`. - The resolved `.current` updates reactively when either the policy reassigns or the OS preference flips. Templates that read `.current` in `$derived` / `$effect` re-run automatically. - Useful for kiosk / preview / embed scenarios where the app needs to override the OS setting in either direction. Pair with `filterReducedMotionKeyframes` if you're hand-rolling animation paths. ### Source #### Default.svelte Source file: [src/lib/examples/use-reduced-motion-config/demos/Default.svelte](https://github.com/humanspeak/svelte-motion/blob/main/docs/src/lib/examples/use-reduced-motion-config/demos/Default.svelte) ```svelte
// use-reduced-motion-config resolved: {reduced.current ? 'reduce' : 'no-preference'}
({ width: 108, height: 108, border: '1px solid var(--brut-ink, #0a0a0a)', background: 'var(--brut-bg-2, #eef4f1)', boxShadow: '6px 6px 0 var(--brut-rule, #d6dedb)', transformOrigin: '50% 50%' }))} >
<MotionConfig reducedMotion="…">
{#each POLICIES as option (option)} {/each}

Tip: Chrome DevTools → Rendering → emulate prefers-reduced-motion: reduce to verify the 'user' path honors the OS setting.

```