Something a bit more out-of-the-box: I used to run 64-bit linux on a 2,1 Macbook Pro. Similar specs, including the same RAM ceiling. The isos are a bit out of date, but you can always install one and then upgrade from there. <a href="">https://mattgadient.com/linux-dvd-images-and-how-to-for-32-bit-efi-macs-late-2006-models/</a>