I read this as "never buy new electronics because someones old used one is less e-waste".

The motherboard is modular and the compute part of this is replaceable, it's sort of the whole point.

The modules are mostly compatible between all of their products: MNT Reform, MNT Pocket Reform that are available now and the future MNT Reform Next (a more streamlined laptop) and the MNT Station (mini desktop pc).