@gwennelsonuk @psyhackological Yes well, the most scientific way to describe Libreboot's nature is to link the build system documentation:
https://libreboot.org/docs/maintain/
In the same way you can think of Debian as a Linux distribution, so too is Libreboot a coreboot distribution.
As for binary blobs, Libreboot's policy on this is here:
https://libreboot.org/news/policy.html
The distro concept evolved over time, but Libreboot's primary purpose is to remove blobs when feasible, and to provide ideally free firmware.