{ nixpkgs ? import <nixpkgs> }:

with builtins;

let
  nixpkgs' = nixpkgs {
    config.allowUnsupportedSystem = true;
    crossSystem = {
      isx86_64 = true;
      isGenode = true;
      imports = [ ./platform.nix ];
    };
    overlays = [ (import ./overlay) ];
  };

in rec {
  nixpkgs = nixpkgs';

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

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

}