{ config, pkgs, ... }:

{
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  boot.tmp.useTmpfs = true;

  time.timeZone = "America/New_York";

  networking.hostName = "elmo";
  networking.domain = "mou.fo";

  # TODO switch to networkd
  networking.networkmanager.enable = true;
  # Temp addresses are preferred for IPv6 source address selection (RFC 6724),
  # which complicates dynamic DNS.
  networking.tempAddresses = "disabled";

  services.avahi = {
    enable = true;
    nssmdns = true;
    publish = {
      enable = true;
      addresses = true;
    };
  };

  # https://github.com/NixOS/nixpkgs/issues/54707#issuecomment-1132907191
  systemd.services.nix-daemon = {
    environment.TMPDIR = "/var/tmp";
  };

  # https://nixos.wiki/wiki/Hardware/Apple#Auto_Restart
  systemd.services.enable-autorestart = {
    description = "Boot after power failure (server mode)";
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      Type = "oneshot";
    };
    # https://superuser.com/a/1051137
    script = "${pkgs.pciutils}/bin/setpci -s 00:1f.0 0xa4.b=0";
  };

  systemd.services.boot-email = {
    description = "Boot email";
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      Type = "oneshot";
    };
    script = ''
      echo -e "Subject: ${config.networking.fqdn} restarted\n\n$(date)" | /run/wrappers/bin/sendmail root
    '';
  };

  # https://wiki.archlinux.org/index.php/Systemd/Timers#MAILTO
  systemd.services."status-email@" = {
    description = "Status email for %i";
    unitConfig = {
      # Throttle notifications to twice daily.
      StartLimitIntervalSec = "12hr";
      StartLimitBurst = "1";
    };
    serviceConfig = {
      Type = "oneshot";
    };
    scriptArgs = "%i";
    script = ''
      /run/wrappers/bin/sendmail root <<EOF
      From: systemd <root>
      Subject: $1 status
      Content-Transfer-Encoding: 8bit
      Content-Type: text/plain; charset=UTF-8

      $(systemctl status --full "$1")
      EOF
    '';
  };
}