libre.computer do they sell computers which can run entirely on free software?
Their website says: with minimal proprietary firmware. Is any libre computer able to run on entirely free software? If a given libre computer device requires non free software in order to work, will the computer run if you do not install the non free piece of software in question? Thank you.
https://libre.computer says that:
Every Libre Computer board runs on the mainline Linux kernel and upstream U-Boot with minimal proprietary firmware
Unfortunately, the so-called "mainline Linux kernel" includes the linux-firmware repository, full of proprietary firmware. GNUser may know whether some of the Libre Computer boards mostly work in absence of proprietary firmware. He voiced concerns regarding the way Libre Computer builds its bootloaders and distributions: https://hub.libre.computer/t/source-code-git-repository-for-bootloaders-and-firmwares/2743
They do not seem very free software friendly toward the community's questions. That seem reason enough to avoid them.