{ config, pkgs, ... }:

{
  services.flatpak.enable = true;

  # TODO: integrate into gnome-software

  # TODO: somehow run this, like i do in home-manager
  # flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo


  # fix missing fonts in flatpak, without resorting to copying fonts to a dedicated folder
  # via https://github.com/NixOS/nixpkgs/issues/119433#issuecomment-1326957279
  system.fsPackages = [ pkgs.bindfs ];
  fileSystems = let
    mkRoSymBind = path: {
      device = path;
      fsType = "fuse.bindfs";
      # resolve-symlinks enable not mounting /nix into the flatpacks
      options = [ "ro" "resolve-symlinks" "x-gvfs-hide" ];
    };
    aggregatedFonts = pkgs.buildEnv {
      name = "system-fonts";
      paths = config.fonts.fonts;
      pathsToLink = [ "/share/fonts" ];
    };
  in {
    # Create an FHS mount to support flatpak host icons/fonts
    "/usr/share/icons" = mkRoSymBind (config.system.path + "/share/icons");
    "/usr/share/fonts" = mkRoSymBind (aggregatedFonts + "/share/fonts");
  };
}