{ lib, config, pkgs, ... }:
{
  
 system.fsPackages = [ pkgs.bindfs ];
  fileSystems = let
    mkRoSymBind = path: {
      device = path;
      fsType = "fuse.bindfs";
      options = [ "ro" "resolve-symlinks" "x-gvfs-hide" ];
    };
    aggregatedIcons = pkgs.buildEnv {
      name = "system-icons";
      paths = with pkgs; [
        libsForQt5.breeze-qt5  # for plasma
        #gnome.gnome-themes-extra
      ];
      pathsToLink = [ "/share/icons" ];
    };
    aggregatedFonts = pkgs.buildEnv {
      name = "system-fonts";
      paths = config.fonts.packages;
      pathsToLink = [ "/share/fonts" ];
    };
  in {
    "/usr/share/icons" = mkRoSymBind "${aggregatedIcons}/share/icons";
    "/usr/local/share/fonts" = mkRoSymBind "${aggregatedFonts}/share/fonts";
  };

  fonts = {
    fontDir.enable = true;
    packages = with pkgs; [
         carlito
    dejavu_fonts
    ipafont
    kochi-substitute
    source-code-pro
    ttf_bitstream_vera
    noto-fonts
    noto-fonts-cjk
    noto-fonts-emoji
    liberation_ttf
    # waybar
    /*
    font-awesome
    powerline-fonts
    powerline-symbols
    (nerdfonts.override { fonts = [ "NerdFontsSymbolsOnly" ]; })*/
    ];
  };

}