{ nixpkgs
, nixpkgs-unstable
, home-manager
, nix-flatpak
, ...
}:

let
  system = "x86_64-linux";

  pkgsUnstable = import nixpkgs-unstable {
    inherit system;
    config.allowUnfree = true;
  };

  moduleNames = [
    "ai"
    "core"
    "desktop"
    "development"
    "features"
    "gaming"
    "hardware"
    "multimedia"
    "networking"
    "security"
    "system"
    "work"
  ];

  mkHost =
    name:
    nixpkgs.lib.nixosSystem {
      inherit system;

      specialArgs = {
        inherit pkgsUnstable;
        nixFlatpak = nix-flatpak;
      };

      modules = [
        nix-flatpak.nixosModules.nix-flatpak
        home-manager.nixosModules.home-manager
        ./hosts/${name}
      ] ++ (map (mod: ./modules/${mod}) moduleNames);
    };

in
{
  nixosConfigurations = {
    gandalf = mkHost "gandalf";
    frodo = mkHost "frodo";
    legolas = mkHost "legolas";
    balrog = mkHost "balrog";
    work = mkHost "work";
  };
}