I have:
- 2x pi4 4gb (bought them previously for octopi and pihole)
- Pi zero
- Several old laptops
- 2x SFF HPs
- 2x netbooks
- An old slim workstation
I work as a sysadmin so I've picked up a few things that wouldve gone to recycling.
My concern is power draw running 24/7 so I need wattage monitors and going to start with the Pi systems. Until I hit performance issues then migrate to a SFF.