Basic Newbie question

This site uses a highly customised version of the original standalone bbPress application. The theme is not available anywhere else.

Thank you for your quick reply.

This site is given as an example here:
https://bbpress.org/about/examples/

I am interested in a basic site, with several forums, registration, logins,
etc. Is there any template anywhere for this kind of functionality?

How about the examples given at: https://codex.bbpress.org/showcase/
or even https://bbpress.org/forums/topic/example-of-a-bbpress-forum

Can the settings, etc., for these be found anywhere?

Thank you!