Is a polyrepo, multi-zone microfrontend possible?

[abhion]

I have two nextjs apps in separate repos. I want to create a multi-zone mfe(short for microfrontend).

The post here by Lee Rob says a basePath is required but the mfe docs says basePath is not supported.

With my current configs, the host app redirects to non-host app when path matches, but the non-host app gives 404.

Suppose the routing in microfrontends.json for non-host app is

 "routing": [
        {
          "group": "app",
          "paths": ["/app", "/app/:path*"]
        }
      ]

when I go to /app from host app, I see a 404 in the non-host app saying GET /app 404 in 28ms. The non-host app doesn't have a page with path /app. It works at just /(with i18n -> /en)

Can the host app redirect to just / instead of /app?