everkit-state

Reusable client-state + persistence primitives for React Native / Expo apps. The storage backend is injected, so the core stays pure and testable outside a React Native runtime.

Exports

• makeSecureStoreAdapter(api) → Zustand StateStorage — a thin, pass-through bridge from a SecureStore-shaped API (getItemAsync/setItemAsync/deleteItemAsync) to Zustand persist. Enforces the load-bearing contract: getItem resolves null (not undefined) on a miss and propagates errors; removeItem is idempotent.
• makeSecureJsonStorage(api) — createJSONStorage-wrapped adapter; what persist({ storage }) consumes. Lazy, so importing it doesn't touch the native store at boot.
• createPreferencesSlice — a composable Zustand slice for the shared persisted shape: theme + hasCompletedOnboarding (+ setters). Spread into a bound store alongside app-specific runtime fields.
• pickPersistedPreferences(state) — partialize helper: persists only theme + hasCompletedOnboarding, dropping actions and foreign fields.
• ThemePreference — 'light' | 'dark' | 'system' (owned here; re-exported by the theme package).

Peer dependencies

• zustand >= 5

Test

npm test   # node --require sucrase/register --test "src/**/__tests__/**/*.test.ts"