The M1 boot process isn't really much more complicated than the boot process of many other embedded ARM systems. Linux already works on ARM; everything I talk about here is about dealing with Apple's particular flavor of hardware and their non-standard boot process. That doesn't have anything in common with PowerPC systems either, so there isn't anything to be gained from PowerPC Linux (other than the I²C driver which I do mention).
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The M1 boot process isn't really much more complicated than the boot process of many other embedded ARM systems. Linux already works on ARM; everything I talk about here is about dealing with Apple's particular flavor of hardware and their non-standard boot process. That doesn't have anything in common with PowerPC systems either, so there isn't anything to be gained from PowerPC Linux (other than the I²C driver which I do mention).
Good work and thanks. Looking forward for the 2nd report !