hey there :)
nice effort, though I just have to say one thing:
I took one glance at the website for libretrend and saw: "core i7"
Which means that these systems are proprietary, and not libre at all. They
come with the Intel Management Engine out of the box:
https://libreboot.org/faq.html#intelme
Furthermore, coreboot these days doesn't actually have source code. Most of
the hardware initialization is handled by binary blobs.
These libretrend systems are *not* libreboot-compatible.
I say these things only for those people who wish to have an entirely libre
system. For people who don't care and just want coreboot (regardless of
blobs) and a free OS, then libretrend is OK. But know what you are buying!
If you want a fully libre system, FSF-endorsed, with libreboot preinstalled,
then buy from one of these companies:
https://libreboot.org/suppliers.html