{ nixpkgs ? import <nixpkgs>
, system ? { config = "x86_64-unknown-genode"; }
}:

with builtins;

let
  nixpkgs' = nixpkgs
    { crossSystem = system;
      config.allowUnsupportedSystem = true;
    };

  portIncludes = ports: listToAttrs
    ( map
        ( name:
            let port = getAttr name ports; in
            { name = name + "_include";
              value = getAttr "include" port;
            }
        )
        (attrNames ports)
    );

  toolchain = import ./tool/toolchain.nix;
in
rec {
  inherit toolchain;
  nixpkgs = nixpkgs';

  dhall = import ./dhall { inherit nixpkgs; };

  upstream = import ./upstream { inherit nixpkgs toolchain; };

  ports = import ./ports { inherit nixpkgs toolchain upstream; };

  libretro = import ./libretro { inherit nixpkgs upstream toolchain; inherit (ports) stdcxx libc; };

  shell = import ./shell.nix
    { inherit nixpkgs toolchain;
      dhallPackages = dhall;
      pkgs = { inherit upstream ports; };
    };
}