System/modules/linux/user.nix

{ config, lib, pkgs, ... }:
let
  nc = config.nathan.config;
  ssh = import ../../info/ssh-keys.nix;
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$cbb3erUqtVGFo/Vux9UwT2NkbVG9VGCxJxPiZFYL0DIc3t4GpYxjkM0M7fFnh.6V8MoSKLM/TvOtzdWbYwI58.";
            openssh.authorizedKeys.keys = ssh.list;
          })
        ];
      };
      # If we install the user, enable sudo
      security.sudo.enable = mkDefault nc.installUser;
      # If we isntall the user, make them trusted
      nix.settings.trusted-users =
        if nc.installUser then [ "${nc.user}" ] 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" ];
    })
  ];
}