Coreboot is low-level plumbing, on top of which, you can place either a BIOS (SeaBIOS) or a UEFI (TianoCore). Purism chose the former. There's an open question

Coreboot is low-level plumbing, on top of which, you can place either a BIOS (SeaBIOS) or a UEFI (TianoCore). Purism chose the former. There's an open question https://forums.puri.sm/t/install-tianocore-payload/2629 https://forums.puri.sm/t/install-tianocore-payload/2629 and a somewhat-relevant developer comment at https://forums.puri.sm/t/librem-v15-boot-issues/1202/7 https://forums.puri.sm/t/librem-v15-boot-issues/1202/7 .