The Raspberry Pi 4 launch site runs on a Pi 4 cluster | Ars Technica https://arstechnica.com/information-technology/2019/06/the-raspberry-pi-4-launch-site-runs-on-a ...
Even with low-performance computers, it is possible to have high performance by keeping it as a cluster. Attempts to "make a supercomputer by combining incompetent Raspberry Pi" are often done, but a ...