It’s always fun to see how people build their home labs but I went exactly the opposite route.

I focused on energy consumption, because of cost and - gasp - wanting to be mindful about it given the current predicament.

Anything that needs to be on 24/7 is on a Pi, and anything that consumes more power is turned off by default (remote poweron possible).

For me at home there is zero need for redundancy and I use a cluster of four tini-mini-micro 1L PCs for my lab work. There are also turned off by default and are also low-power.