
Sshd *must* use PAM because we depend on it for proper session management. The original goal of this option (disabling password logins) can also be implemented by removing pam_auth authentication from sshd's PAM service.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.