Content differences:
--- /etc/ssh/userkeys/jynus.orig
+++ /etc/ssh/userkeys/jynus
@@ -1,2 +1,2 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPBsN9eJxp9Lj4oKH6YghV7fWonc+VzthGW2w5qLOGlq jcrespo@wikimedia.org
sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBGo6TjT7R/3H+PnlkoUmcZNJ90p7A8H4AH/VQT8+8jex7ol2rrC2opHvkftOja/eqvrgE5m4ZyDDGtfJtL2rwn8AAAAEc3NoOg== yubikey
+sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIMNEDCLCP/O99gun4lk0ndNKiwUcYGbC8jZ/n35IvjSiAAAABHNzaDo= Yubikey-USB-C