{pkgs, ...}: {
  environment.systemPackages = with pkgs; [
    # file management
    p7zip
    unzip
    zip
    gnome.file-roller
    gnome.nautilus
    gnome.sushi

    # thumbnails
    webp-pixbuf-loader
    ffmpegthumbnailer
  ];
  programs = {
    dconf.enable = true;
    noisetorch.enable = true;
  };

  programs.sway = {
    enable = true;
    extraPackages = with pkgs; [
      foot
      swaylock-effects
      swayidle
    ];
    extraSessionCommands = ''
      # session
      export XDG_SESSION_TYPE=wayland
      export XDG_SESSION_DESKTOP=sway
      export XDG_CURRENT_DESKTOP=sway
      # wayland
      export NIXOS_OZONE_WL=1
      export MOZ_ENABLE_WAYLAND=1
      export QT_QPA_PLATFORM=wayland
      export SDL_VIDEODRIVER=wayland
      export _JAVA_AWT_WM_NONREPARENTING=1
    '';
    wrapperFeatures = {
      base = true;
      gtk = true;
    };
  };

  services.dbus.packages = with pkgs; [
    darkman
    # gcr needed for gnome3 pinentry, managed in Home-Manager
    gcr
    gnome.sushi
  ];
  xdg.portal.enable = true;
  xdg.portal.wlr.enable = true;
  xdg.portal.extraPortals = with pkgs; [
    darkman
    xdg-desktop-portal-gtk
  ];

  services = {
    # mounting
    gvfs.enable = true;
    udisks2.enable = true;
    devmon.enable = true;

    # thumbnails
    tumbler.enable = true;
  };
}