Such a cluster might be useful for a distribution build farm, where you can fan out builds across the cluster (instead of trying to distribute a single build).

Such a cluster might be useful for a distribution build farm, where you can fan out builds across the cluster (instead of trying to distribute a single build). It depends on whether the hardware is actually shipping now (obviously), how stable it is, and if the system has decent remote management. Of course, most people in the RISC-V camp probably hope to move beyond such hacks sooner than later.