nix/configuration.nix

{
  config,
  pkgs,
  inputs,
  system,
  ...
}: {
  imports = [
    ./hardware.nix
    ./os-mods/network
    ./os-mods/virt
  ];

  nix = {
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 2w";
    };
    settings.auto-optimise-store = true;
    package = pkgs.nixFlakes;
    extraOptions = ''
      experimental-features = nix-command flakes
    '';
  };

  fonts.fontDir.enable = true;
  fonts.fonts = with pkgs; [
    emacs-all-the-icons-fonts
    corefonts
    vistafonts
    noto-fonts
    noto-fonts-cjk
    noto-fonts-emoji
    liberation_ttf
    fira
    fira-code
    fira-code-symbols
    mplus-outline-fonts.githubRelease
    dina-font
    proggyfonts
    (nerdfonts.override {fonts = ["FiraCode" "DroidSansMono" "NerdFontsSymbolsOnly"];})
  ];

  networking.hostName = "nixos-pulse";

  services.fwupd.enable = true;

  time.timeZone = "Europe/Berlin";

  i18n = {
    defaultLocale = "en_US.UTF-8";

    extraLocaleSettings = {
      LANG = "en_US.UTF-8";
      LC_ADDRESS = "de_DE.UTF-8";
      LC_COLLATE = "de_DE.UTF-8";
      LC_CTYPE = "en_US.UTF-8";
      LC_IDENTIFICATION = "de_DE.UTF-8";
      LC_MEASUREMENT = "de_DE.UTF-8";
      LC_MESSAGES = "en_US.UTF-8";
      LC_MONETARY = "de_DE.UTF-8";
      LC_NAME = "de_DE.UTF-8";
      LC_NUMERIC = "de_DE.UTF-8";
      LC_PAPER = "de_DE.UTF-8";
      LC_TELEPHONE = "de_DE.UTF-8";
      LC_TIME = "de_DE.UTF-8";
    };
  };

  services.xserver = {
    enable = true;
    layout = "us";
    xkbVariant = "alt-intl";

    desktopManager.plasma5.enable = true;

    displayManager = {
      defaultSession = "plasmawayland";

      sddm.enable = true;

      # autoLogin = {
      #  enable = true;
      #  user = "tristand";
      # };
    };
  };

  services.printing.enable = true;
  services.printing.drivers = with pkgs; [
    gutenprint
    gutenprintBin
    hplipWithPlugin
    brlaser
    brgenml1cupswrapper
  ];

  sound.enable = true;
  hardware.bluetooth.enable = true;
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  security.sudo.wheelNeedsPassword = false;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    jack.enable = true;
  };

  environment.sessionVariables = {
    EDITOR = "nvim";
  };

  environment.systemPackages = with pkgs; [
    cifs-utils
    neovim
    veracrypt
    vim
  ];

  programs.nix-ld.dev.enable = true;

  programs.command-not-found.enable = false;
  programs.nix-index-database.comma.enable = true;
  programs.dconf.enable = true;
  programs.fish.enable = true;
  programs.gnupg.agent = {
    enable = true;
    enableSSHSupport = true;
  };

  programs.steam = {
    enable = true;
    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
    dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
  };

  services.btrfs.autoScrub.enable = true;
  # For SMB
  services.gvfs.enable = true;
  services.avahi.enable = true;
  services.avahi.nssmdns = true;
  ##

  services.openssh.enable = true;

  networking.firewall.allowedTCPPorts = [22];
  # networking.firewall.allowedUDPPorts = [ ... ];

  # Samba
  networking.firewall.extraCommands = ''iptables -t raw -A OUTPUT -p udp -m udp --dport 137 -j CT --helper netbios-ns'';

  powerManagement.powertop.enable = true;
  systemd.services.powertop.postStart = ''
    HIDDEVICES=$(ls /sys/bus/usb/drivers/usbhid | grep -oE '^[0-9]+-[0-9\.]+' | sort -u)
    for i in $HIDDEVICES; do
      echo -n "Enabling " | cat - /sys/bus/usb/devices/$i/product
      echo 'on' > /sys/bus/usb/devices/$i/power/control
    done
  '';

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.05"; # Did you read the comment?
}