If the backup key doesn't yet exist then you can manually create it with:
#+BEGIN_SRC bash
freedombone-addcert -h backup
#+END_SRC
Store it within a password manager on a USB drive which you carry with you. In the worst case scenario you'll be able to restore your system on completely new hardware if you have this key, so long as at least one of your friends servers is accessable via ssh.
Store it within a password manager on a USB drive which you carry with you. In the worst case scenario you'll be able to restore your system on completely new hardware if you have this key, so long as at least one of your friends servers is accessable via ssh.