I want to receive named exports of nested routes(children) as props in the parent.

.
├── docs
│   └── get-started.tsx
└── docs.tsx

// get-started.tsx
export default function GetStarted() {
  return <h1></h1>
}

export const title = "Get Started"

// docs.tsx
export default function Docs(props) {
  if (props.Page) {
    // I want to get child named export via
    // props.pageProps.title or
    // props.title

    return <props.Page />
  }

  return <></>
}

Currently, you can only get the properties assigned to the default export function.

If this can be done, it will be very easy to use with mdx.
I have published aleph-plugin-mdx.

For example, here is the file

// pages/docs/installation.mdx
---
title: hello
---

# hello

The conversion to MDX 2 looks like this (Also converts front matter)

export const title = "hello"

function MDXContent() {
  ...
}
export default MDXContent

It would be nice if we could get title as props at the parent layout page component.