For my homelab, I came up with a simple Raspberry Pi Zero 2 + Waveshare Ethernet HAT to run PiHole. Since most Raspberry Pi Zero cases are made for the bare Raspberry, I decided to design my own case for this specific combination.

I left some space below the solder dots of the GPIO pins. I also made 4 holes for screws/bolts/stand-offs to be friction-fitted in. They don't have threads, but at that size, you don't need them either.

Assembly:

1. Assemble the Raspberry + Waveshare Ethernet HAT as instructed
   1. Optionally: use 2 to 4 stand-off screws to support the HAT
   2. Do NOT plug in the USB bridge yet
   3. Do NOT put in the SD card yet
2. Put the assembled Pi in the case and check if all ports align
3. Plug in the USB bridge that comes with the Ethernet HAT
4. Put the SD card in the Pi
5. Put the top cover on the case
   1. If it doesn't go in smoothy, you might have to sand the little dots on the inside of the case a bit.

Note: You can easily adjust the size of the ports in case they don't line up correctly. The walls should be thin enough to be cut with a sharp knife.