Permalinks / URLs for non-content pages (e.g. taxonomy pages)

Is it possible to control the permalink / URL for non-content pages?

Due to how I want to host my Hugo site in sub-directories, I’d like to be able to prefix the URLs of all pages, especially taxonomy pages.

For example, I have a “blog” section and a “grammar” section. These work perfectly for content URLs, which are all prefixed with “blog” or “grammar”. However, other pages like taxonomy pages are directly from the base URL, whereas I’d like to be able to put something akin to a section sub-directory in front of those as well.

Are there any options for this?

Currently no, but see this thread: