why not using useSyncExternalStoreWithSelector ?

[scr2em]

import { listenKeys } from 'nanostores'
import { useCallback, useSyncExternalStore } from 'react'

export function useStore(store, opts = {}) {
  let subscribe = useCallback(
    onChange =>
      opts.keys
        ? listenKeys(store, opts.keys, onChange)
        : store.listen(onChange),
    [opts.keys, store]
  )

  let get = store.get.bind(store)

  return useSyncExternalStore(subscribe, get, get)
}

isn't it better to use useSyncExternalStoreWithSelector to replace listening for keys ?
example

const atom = Atom({name: 'jo', age : 21})

const age = useStore(atom, (state)=> state.age) // and only re-renders when the age is changes 

[TrySound]

useSyncExternalStoreWithSelector is some kinda experimental api and not part of react. Using it would require to install additional package.