Feature Request: Atom.kvs effectful default value

[florianbepunkt]

I have some atoms that I would like to sync with local storage, but their initial value is effectful. I'm looking for a way to persist the value, but Atom.kvs requires a non-effectful default.

const runtime = Atom.runtime(BrowserKeyValueStore.layerLocalStorage)

const flagAtom = Atom.kvs({
  runtime: runtime,
  key: "flag",
  schema: Schema.Boolean,
  defaultValue: () => Effect.succed(false),
})

[tim-smart]

The defaultValue needs to be synchronous, so it can't be effectful.