Oreboot is the effort that has been taking shape over the past year as an open-source focused, Rustlang-based downstream of Coreboot. Oreboot continues advancing in its own right concurrent to the wonderful Coreboot advancements.
Oreboot continues to pride itself on being as open-source as possible though acknowledging at least for now on x86 CPUs they need the likes of ME/FSP firmware. Oreboot is also still focused on using Rust code rather than C code in the name of better security and reliability.
[Source: Phoronix]
