Some exciting updates in Homebrew today: You can now directly use a hardware key with OpenSSH.
PR: https://blog.snapdragon.cc/2020/02/23/direct-fido2-u2f-support-in-openssh-8-2-on-macos/
OpenSSH Release Log: https://www.openssh.com/txt/release-8.2
PR: https://blog.snapdragon.cc/2020/02/23/direct-fido2-u2f-support-in-openssh-8-2-on-macos/
OpenSSH Release Log: https://www.openssh.com/txt/release-8.2