nixos-configs/modules/sshd.nix

{config, ...}: let
  inherit (config.vars) mainUser;
in {
  services = {
    openssh = {
      enable = true;
      settings = {
        PasswordAuthentication = false;
        PermitRootLogin = "no";
      };
    };
  };

  users.users.${mainUser} = {
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPE39uk52+NIDLdHeoSHIEsOUUFRzj06AGn09z4TUOYm matt@OP9"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICr2+CpqXNMLsjgbrYyIwTKhlVSiIYol1ghBPzLmUpKl matt@binto"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJGbLu+Gb7PiyNgNXMHemaQLnKixebx1/4cdJGna9OQp matt@wim"
    ];
  };
}