Discover the latest upgrade to OpenSSH's `ssh-keygen` command in this informative 10-minute video. Learn about the new default Ed25519 keys and their impact on your workflow. Explore the basics of OpenSSH and ssh-keygen, understand the implications of this change, and get tips on pruning your keys. Gain insights into the underlying cryptography concepts, including RSA, Curve25519, and Twisted Edwards curve. Follow along with practical demonstrations of command usage and options. As a bonus, enjoy vintage computing references and a recommendation for a fascinating video about a Power Computing Macintosh clone by Macintosh Librarian.