OpenSSH 8.2 with FIDO2/U2F hardware key on macOS

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