Can I replace stock UEFI with coreboot?

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I’d like to get the most out of the battery life in the razer tensorbook. I already have several boot options I’ve created with NixOS, which blacklist the Nvidia driver for instance, which has helped a bit with battery life. However, I’d like to squeeze out as much battery life as possible by changing the UEFI to coreboot.

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This article from 2020 with a proof of concept looks promising: https://www.phoronix.com/news/Coreboot-JSP-TGL-Razer-ICL

This is the Intel Icelake in a Razer Stealth

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