How to name a folder in next js such that it is skipped in the url path?

In my nextjs project, is it possible to ignore or skip a subfolder in the path of the url?

What I mean is, lets say I have a folder structure like this -

src
  - app
    - page1
       - page.tsx
    - page2
       - page.tsx
    - pagegroup (skip this in the url path)
       - insidepage1
          - page.tsx
       - insidepage2
          - page.tsx
       - insidepage3
          - page.tsx

i want insidepage to be accessed by url -

/insidepage1

/insidepage2

and not

/pagegroup/insidepage1

Is there a way to name a folder such that it becomes transparent? I did see it somewhere in a youtube tutorial but unfortunately can't remember or find that video now.

I found the solution.
If I name the folder in () it will become transparent.
So I can just name pagegroup to (pagegroup) and it won't be included in the url path.