I’ll admit: I’m terrible at managing SSH keys. Every time I build a new desktop I end up generating a new SSH key with ssh-keygen and then half-heartedly copy it to authorized_keys on machines that I ssh into. The machines that I use most often have huge authorized_keys files including keys from machines that died years ago, while systems that I rarely use don’t have any keys at all and I end up falling back to passwords until it annoys me enough to copy keys over. This has been especia...