I recently did my GPG setup. For the day to day operations, I have subkeys stored a yubikey. For the storage and backup, I use the nitrokey storage (https://www

I recently did my GPG setup. For the day to day operations, I have subkeys stored a yubikey. For the storage and backup, I use the nitrokey storage (https://www.nitrokey.com/ https://www.nitrokey.com/), open hardware, open source usb key with hardware encryption. It's compatible with all os and there is a non encrypted partition (on which I put the app needed for main OSes) As a bonus, the nitrokey is also a smartcard openpgp (so I have a smartcard backup) and also has slots for 2-FA (So I have a backup of that) I plan to buy a second one that I would store outside of my home.