nixos_config/hosts/common/server.nix

{ config, pkgs, ... }:

{  
  system.autoUpgrade = {
    allowReboot = true;
  }; # end system.autoUpgrade
  services = {
    openssh = {
      enable = true;
      permitRootLogin = "no";
      passwordAuthentication = false;
    }; # end openssh
  }; # end services

  environment = {
    systemPackages = with pkgs; [
      devenv
      direnv
    ]; # end systemPackages
  }; # end environment
} # end file