Trouble porting a React hook to Solid

export const createPlaidLink = (options: PlaidLinkOptions) => {
  const [loading, error] = useScript(PLAID_LINK_STABLE_URL);

  const [plaid, setPlaid] = createSignal<PlaidFactory | null>();
  const [iframeLoaded, setIframeLoaded] = createSignal(false);
  const products = ((options as PlaidLinkOptionsWithPublicKey).product || [])
    .slice()
    .sort()
    .join(",");

  createEffect(() => {
    if (loading()) {
      console.log(`loading: ${loading()}`);
      return;
    }

    if (
      !options.token &&
      !(options as PlaidLinkOptionsWithPublicKey).publicKey
    ) {
      console.log("no token");
      return;
    }

    if (error() || !window.Plaid) {
      console.error("Error loading Plaid", error);
    }

    // exit
    if (plaid() != null) {
      plaid()!.exit({ force: true }, () => plaid()!.destroy());
    }

    const next = createPlaid(
      {
        ...options,
        onLoad: () => {
          setIframeLoaded(true);
          options.onLoad && options.onLoad();
        },
      },
      window.Plaid.create
    );

    setPlaid(next);

    onCleanup(() => {
      next.exit({ force: true }, () => next.destroy());
    });
  });

  const ready = createMemo(
    () => plaid() != null && (!loading || iframeLoaded())
  );

  const openNoOp = () => {
    if (!options.token) {
      console.warn(
        "solid-plaid-link: You cannot call open() without a valid token supplied to usePlaidLink. This is a no-op."
      );
    }
  };

  return {
    error,
    ready,
    exit: plaid() ? plaid()!.exit : noop,
    open: plaid() ? plaid()!.open : openNoOp,
  };
};