{
  pkgs,
  lib,
  ...
}: {
  # Desktop environment - Niri compositor
  programs.niri.enable = true;

  # Default session
  services.displayManager.defaultSession = "niri";

  services.xserver.xkb = {
    layout = "cz";
    options = "eurosign:e,caps:escape";
  };
  # Polkit fix for Niri
  security.polkit.enable = true;
  systemd.user.services.niri-flake-polkit.enable = false;
  systemd.user.services.polkit-gnome-authentication-agent-1 = {
    description = "polkit-gnome-authentication-agent-1";
    wantedBy = ["graphical-session.target"];
    wants = ["graphical-session.target"];
    after = ["graphical-session.target"];
    serviceConfig = {
      Type = "simple";
      ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
      Restart = "on-failure";
      RestartSec = 1;
      TimeoutStopSec = 10;
    };
  };

  # Audio - Pipewire
  programs.noisetorch.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };
  environment.systemPackages = with pkgs; [
    playerctl
    pulsemixer
  ];

  # XDG portals
  xdg.portal.extraPortals = [
    pkgs.xdg-desktop-portal-cosmic
  ];
  xdg.portal.config.common.default = [
    "gnome"
  ];

  # Fonts
  nixpkgs.config.packageOverrides = pkgs: {
    google-fonts = pkgs.google-fonts.overrideAttrs (oldAttrs: {
      src = pkgs.fetchFromGitHub {
        owner = "google";
        repo = "fonts";
        rev = "0bd2d5599819aa0774f5ca64c8ac3f54ae3fd54f";
        sha256 = "sha256-E89GYJKG65Dh7TPI6TVre/4LCxXnxvTAPYS/OPj7nPg=";
      };
      installPhase =
        oldAttrs.installPhase
        + "mv $out/share/fonts/truetype $out/share/fonts/ttf\n"
        + "rm $out/share/fonts/ttf/Noto*Emoji*.ttf";
    });
  };

  fonts = {
    packages = with pkgs; [
      nerd-fonts.fira-code
      nerd-fonts.departure-mono
      google-fonts
      noto-fonts-color-emoji
      montserrat
      atkinson-hyperlegible
      arkpandora_ttf
      liberation_ttf
      caladea
      carlito
      garamond-libre
      ocr-a
      amiri
      libertine
      inter
      b612
      departure-mono
      yasashisa-gothic
    ];
    fontDir.enable = true;
  };

  # Stylix configuration - Gruvbox Dark Hard
  stylix = {
    enable = true;
    polarity = "dark";
    base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-dark-hard.yaml";
    fonts = {
      serif = {
        package = pkgs.libertine;
        name = "Linux Libertine O";
      };
      sansSerif = {
        package = pkgs.atkinson-hyperlegible;
        name = "Atkinson Hyperlegible";
      };
      monospace = {
        package = pkgs.nerd-fonts.departure-mono;
        name = "Departure Mono Nerd Font";
      };
      emoji = {
        package = pkgs.noto-fonts-color-emoji;
        name = "Noto Color Emoji";
      };
    };
  };

  # Flatpak & misc services
  services.flatpak.enable = true;
  services.illum.enable = true;
  services.upower.enable = true;
}