This looks super cool! I just got an M1 MBA, it's fast as lightning. Its nice knowing a project like this is percolating and that in a few years when this daily driver becomes an extra machine there will be fun linux alternatives to try.
If your MacBook is still working by then. Looks like there is a lawsuit against Apple, because there are hardware issues with the screens of M1 Air and Pro. Before there was the USB-C PD to brick issue, but that may have been fixed now. Overall, not the best track record for longevity.