Route grouping support

[NuroDev]

What

Coming from trying out the new Next.js app directory (Not an apples to apples comparison I know) I've found one feature that has made structuring my file-based routes 100x easier to manage is route groups which allows you to group pages together in a directory & wrapping that directory name in brackets, like (foo) for example, to keep the route pathname the same isolate stuff to be scoped specifically.

Wondering what others thoughts on this feature are & if this is something that either Fresh could add or someone else could implement via a 3rd party module?

Why

One of the best examples I have found for this is isolating the "app" part of your application & the "marketing" page(s). So you have (marketing) that groups together say index.tsx, pricing.tsx, about.tsx, etc & then you have (dashboard) for the actual application which is all passed through a _middleware.ts to add, for example, some authentication check.