{ config, lib, pkgs, ... }:
let nc = config.nathan.config;
in with lib; {
  config = mkMerge [
    {
      users = {
        # If we install the user and the system is hardended, then disable mutable users
        mutableUsers = !(nc.installUser && nc.harden);
        # Configure our user, if enabled
        users."${nc.user}" = mkMerge [
          (mkIf nc.installUser {
            # Darwin is special
            home = if pkgs.stdenv.isDarwin then
              "/Users/${nc.user}"
            else
              "/home/${nc.user}";
            description = "Nathan McCarty";
            shell = pkgs.fish;
            # Linux specific configuration next
          })
          (mkIf (nc.installUser && pkgs.stdenv.isLinux) {
            isNormalUser = true;
            extraGroups = [
              "wheel"
              "networkmanager"
              "audio"
              "docker"
              "libvirtd"
              "uinput"
              "adbusers"
              "plugdev"
            ];
            hashedPassword =
              "$6$ShBAPGwzKZuB7eEv$cbb3erUqtVGFo/Vux9UwT2NkbVG9VGCxJxPiZFYL0DIc3t4GpYxjkM0M7fFnh.6V8MoSKLM/TvOtzdWbYwI58.";
            openssh.authorizedKeys.keys = [
              # yubikey ssh key
              "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILRs6zVljIlQEZ8F+aEBqqbpeFJwCw3JdveZ8TQWfkev cardno:000615938515"
              # Macbook pro key
              "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGBfkO7kq37RQMT8UE8zQt/vP4Ub7kizLw6niToJwAIe nathan@Nathans-MacBook-Pro.local"
              # Phone key
              "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFR0zpmBCb0iEOeeI6SBwgucddNzccfQ5Zmdgib5iSmF nix-on-droid@localhost"
              # Tablet key
              "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKltqneJjfdLjOvnWQC2iP7hP7aTYkURPiR8LFjB7z87 nix-on-droid@localhost"
            ];
          })
        ];
      };
      # If we install the user, enable sudo
      security.sudo.enable = mkDefault nc.installUser;
      # If we isntall the user, make them trusted
      nix.settings.trusted-users = if nc.installUser then [ "nathan" ] else [ ];
      # If we setup the user, install the shell as well
      environment.systemPackages =
        if nc.installUser then [ pkgs.fish ] else [ ];
      # Configure the timezone
      time.timeZone = "America/New_York";
    }
    (mkIf config.nathan.hardware.amdPassthrough {
      users.users."${nc.user}".extraGroups = [ "libvirtd" ];
    })
  ];
}