I'm assuming this works because the Thinkpad X220 and the early Macbooks had a very similar chipset. Coincidentally, this is also why the first and second gene

I'm assuming this works because the Thinkpad X220 and the early Macbooks had a very similar chipset. Coincidentally, this is also why the first and second generation Macbooks, along with a handful of Thinkpads, are among the few laptops that can install Libreboot: https://libreboot.org/docs/hardware/ https://libreboot.org/docs/hardware/