So most of my raspberry pi 4’s are deployed. But I still have a 3B, Zero 2W, Zero, 400 and a 1A that I have that I’m not doing anything with. I don’t know what would be a good project to use them with. Looking for some inspiration/ideas.
Edit: my current 4’s are hosting my pi hole, homebridge and Immich frame.


I always have my sdcards just be the grub disk and all the root and other partitions are on a USB drive that is on it (I moved mostly to clones that have eMMC but this is what my older pis use).
Same here. I have 2 other Pi servers and they’ve got no SD card - one has a USB SSD and the other is NVMe on the Pi 5.
On this one I was only somewhat concerned about SD rot. It was more that on a read/write file system any bad shutdown has a small chance of corrupting something. I wanted it to be bulletproof since it’s got to come up to start the other gear when I’m far from home and unable to fsck and troubleshoot.