Comment by VoxPelli

If nothing else, it can at least be part of your hard drive: https://www.anandtech.com/show/13678/western-digital-reveals...

The main CPU is just one of many chips in a computer nowadays – even some cables have ARM-chips built into them to convert signals. RISC-V can probably be an even better fit there as its open design makes it a lot easier to customize it so that its tailored for such specific tasks.