I would like to generate the safest possible way a new bitcoin address using raspery pi 4. I miss some simple yet for me a bit confusing details in order to do it correctly. If anyone is familiar with this way help please.
Easy way is to install Raspberry Pi OS or Debian and then install Electrum or some other wallet (Sparrow, etc) to generate address.
Just make sure you have wifi turned off and don't have any internet cables connected to device.
Old Raspberry Pi Zero is perfect as small airgapped device (no WiFi or Bluetooth), that is why DIY project Seedsigner is using it as their main device.
This is cheaper and better way in my opinion:
https://seedsigner.com/