Type safety on several routers within the same project

[pierrelemee]

Hello 👋 ,

I'm currently adding Tanstack routers to a project I'm working on, with these constraints:

• the app is a PHP backend
• there are several areas, each one dedicated to a kind of users and accessible through prefixed routes like agent/fdo/*, agent/fip6/* or /agent/uap/*
• each area has its own SPA with its dedicated router recreating prefix to maintain URL consistency between frontend and backend
• I must prevent privilege escalation by splitting routes between routers

I would like to benefit of type safety and IDE completion,but when working on a router B, my editor complains about routes not found in the set of known routes of the router A:

My guess is this is due to multiple declarations of the router module extension:

declare module '@tanstack/react-router' {
  interface Register {
    // This infers the type of our router and registers it across your entire project
    router: typeof router
  }
}

So my question is: is there a workaround to this ? Or simply maintaining every SPA in its own directory, each one at the same level, will release the said ambiguity ?