Yeah, it's cool! A couple extra tips:

- You can put "PKCS11Provider /usr/lib...." in your .ssh/config file (even tied to a specific Host block) to make it load the module automatically instead of having to use an argument every time you run ssh/sftp/scp/etc.

- For windows, putty-cac works well with the built-in smartcard/crypto API (CAPI), even on machines where you don't have administrative access (like my work machine). It even has its own version of pageant, so it'll work with tools like WinSCP as well.

https://risacher.org/putty-cac/ https://github.com/NoMoreFood/putty-cac/releases