app_init_take_two.ts

function render(appState: AppState) {
  switch (appState.type) {
    case "Initializing":
      return "Loading...";

    case "Ready":
      const { username } = appState.user;
      const { greeting } = appState.translations;
      return `${greeting}, ${username}`;

    case "Failing":
      return "Could not initialize the application!";
  }
}