How would you use route groups without changing public URLs?

Uses route groups for organization and layout boundaries while accounting for URL collisions and full reloads across roots.

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TL;DR

A folder such as (marketing) or (app) groups routes without adding that folder name to the URL. I use groups to organize teams or features, opt selected routes into a shared layout, or create separate root layouts for distinct application shells. Because the group is omitted from the URL, two groups cannot both resolve to the same final route.

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App Router folder conventions, root layouts, URL stability, organization, and navigation behavior.

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Overview
Parentheses organize routes and layout ownership, but they do not become URL segments.
A folder such as (marketing) or (app) groups routes without adding that folder name to the URL. I use groups to organize teams or features, opt selected routes into a shared layout, or create separate root layouts for distinct application shells. Because the group is omitted from the URL, two groups cannot both resolve to the same final route.
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Stronger answer
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A useful structure might put /pricing under a marketing layout and under an authenticated product layout while preserving those clean URLs. If the top-level is omitted, each group can define its own root layout with its own and . Navigation between different root layouts performs a full page load, so I do not split roots only for folder tidiness. I keep private implementation folders and colocated files distinct from route groups because they solve different organizational problems.

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Details

Assuming the group name appears in the browser URL.
Creating colliding routes in different groups.
Splitting root layouts without considering full page loads.

How would you use route groups without changing public URLs?

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How would you use route groups without changing public URLs?

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