I have 3 GrapheneOS devices:
- 1 is my daily driver.
- 2 is offline-only, it acts as a bitcoin hardware wallet, i use it to sign transactions. I also keep my most important backups in this device.
- 3 is for my regular backups, i use a USB-C cable connected to my main device to transfer my files. This one also acts as a backup solution in case i lose my daily driver device or it stops working.