Storable
Inspired by Svelte stores.
import { storable } from 'https://deno.land/x/storable/mod.ts'
const username = storable('Vehmloewff')
const unsubscribe = username.subscribe(username => console.log(`Username: ${username}`))
// -> Username: Vehmloewff
username.set('JohnDoe')
// -> Username: JohnDoe
unsubscribe()