Zfs through trunas will let you do raid 1, then jbod more raid 1s as you add more drives. That’s how I’ve gradually gone from 2 12TB, to 14TBs, the. Finally up to 20TBs without any hassle. I’m sure other software raids will do the same.

The heatsink comes away just as smoothly if you’re looking to reapply thermal paste down the road.

Not that you ever should, since it has PTM7958 which should never need to be replaced, and gets better with age.