// define your stores
import { writable } from './localStorageStore'

// `preferences` will be:
//  - Synced with localStorage
//  - Accessible via pub/sub
export const preferences = writable('preferences', {
  theme: 'dark',
  pane: '50%',
  ...
})
  
// then when you want to use the store
import { get } from 'svelte/store'
import { preferences } from './stores'

preferences.subscribe(...) // subscribe to changes
preferences.update(...) // update value
preferences.set(...) // set value
get(preferences) // read value
$preferences // read value with automatic subscription