hi Derek!
you inspired me to build a relay.
raspberry pi 4 running start9os wif external USB 3 nvme hard drive.
Discussion
I love your Pi rack. I've always wanted to build a Pi cluster.
had some fun doing that with pi 3b. learned just a ton about sysadmin.
highly recommend trying it out with 4 or more pi 5b 8gig.
these little guys are just so tough and capable.
yo man, cool rack, got a link for where to get one?
this one was a major pain in the rear to assemble.
if I had to do it again, I'd go bigger, because the pis just keep multiplying around here.
I'd probably shoot for some like this.
https://www.microcenter.com/product/632038/52pi-12-layers-cluster-case-w-fan-for-pi-and-jetson-nano