ssh.nix

# A NixOS module which configures SSH access to a system.
{
  lib,
  config,
  ...
}: {
  options = {
  };
  config =
  let
    cfg = config."private-storage".config;
  in {
    # An attempt at a properly secure SSH configuration.  This is informed by
    # personal experience as well as various web resources:
    #
    # https://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html
    services.openssh = {
      enable = true;
    };

    users.users.root.openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIN4GenAY/YLGuf1WoMXyyVa3S9i4JLQ0AG+pt7nvcLlQ exarkun@baryon"
    ];
  };
}