It's for the Pi as that's the target audience but it should apply generally for OpenSSH.
There's also a sister post about improving your "first factor" for those still using passwords: https://2byt.es/post/totp2/
It's for the Pi as that's the target audience but it should apply generally for OpenSSH.
There's also a sister post about improving your "first factor" for those still using passwords: https://2byt.es/post/totp2/