domain store

domain store means persistent and global. it's the same meaning with redux store. You should mount them to Ractor system before your root component has been created

import { Provider } from "ractor-react"
import { system } from "./system"
import { StoreA } from "./StoreA"
import { StoreB } from "./StoreB"

render(
  <Provider system={system} stores={[StoreA, StoreB]}>
    <App />
  </Provider>,
  document.getElementById("root")
)