I just stumbled over this as
[five](https://discussion.fedoraproject.org/t/should-we-check-for-the-presence-of-install-in-spec-files/137316)
package already use this new "BuildSystem: pyproject" approach but I can't
find any official documentation. If this is already in use and accepted for
Fed
Thanks, I was searching for the meaning of "BuildSystem: pyproject" and didn't
see anything from the Fedora domains so this discussion here looked the most
interesting on the search results. Your first link is what I was looking for at
the moment, saying that it is new, provisional and able to r