Request to not enforce arbitrary standardization.
I've received news from nimble while working on my library nimsgp that the default folder structure has not only changed, but the new one will be enforced by error in the future.

This issue is made to request rethinking this. The package manager had made the claim that the new folder structure (parent + one level with a specific name) will be enforced by error while many existing packages that still work completely fine use the original folder structure, and may never be possible for the original maintainers to update to the new folder structure.

As well, I would like to request the return of a "srcDir" or similar variable to point where the actual source of the library itself is, relative to the nimble package file.

I ask all of this because my project is using a sub-library system to implement a necessary library for its usage that is not reasonable to make into a separate project, due to currently having an extremely unstable public API reliant on changes to the primary library.