[StavrosK]

I think those are pretty much the only ones, the Yubikey in GPG smartcard mode was always too fiddly for me and interfered with my agent in other ways, but this is trivial to set up and use.

Also, a big draw of the USB SSH key for me is that I can plug it in to other computers and connect to my servers, which smartcard mode didn't do, so that was a big drawback for me.

[simias]

Yeah fiddly is the right word, although once the painful initial configuration is done it generally works fairly well in my experience.

Being able to easily migrate to a new computer sounds like a great feature though.

[RL_Quine]

You can't do that easily, you still need the public key file on disk.

[StavrosK]

Not with resident key mode.

[RL_Quine]

Sort of. The keys have limited space on them (20 for some Yubikey models) for resident keys. You wouldn't want to be always using them for everything.

[StavrosK]

That's why I'm excited about SoloKeys v2, they (will) come with space for thousands of resident keys.