Is it possible to merge two routeTrees or two router instances?

[itshallrun]

I want to deliver a component as a npm package.
This component brings a tanstack/router with some nested routes.

The consuming app has its own router, with additional routes, and should be able to override some of the nested routes of my component from the package.

It also would be nice to have the code completion for the routes of the package.

Please point me in the right direction on how to achieve this.