I'm using React Native with expo-router and trying to implement a modal flow that includes multiple screens (e.g. a step-by-step form or selection process). The idea is:

• The modal can be opened from different parts of the app

• Inside the modal, I navigate between a few screens (e.g. selection → form → confirmation)

• Once the user saves or completes the task, I want to programmatically close the modal

• If the user presses "Cancel" or saves successfully, the modal should be dismissed

I'm currently opening the modal using a Link or router.push('/(modals)/my-modal'), and the layout is structured like this:

app/
  _layout.tsx
  (tabs)/
    ...
  (modals)/
    _layout.tsx        ← Modal stack layout
    my-modal/
      index.tsx        ← First screen in the modal
      step-two.tsx     ← Second screen
      confirmation.tsx ← Final step (calls API)

I use a Stack inside (modals)/_layout.tsx like this:

export default function ModalLayout() {
  return (
    
  );
}

Inside the modal flow, I navigate with router.push(...) and everything works.

Problem: Once the flow completes (e.g. after a successful API call), I want to close the whole modal, regardless of how deep I am in the modal stack.

However:

• router.dismiss() just does a goBack() and doesn’t close the whole modal

• router.back() same

• I can't detect reliably if I'm inside a modal (useNavigationState().type returns "stack")

What is the correct way to close a modal flow (with internal navigation) programmatically once the job is done (e.g. API call succeeds)?