let
  sources = import ./npins;
  pkgs = import sources.nixpkgs { };
  config =
    if pkgs.stdenv.isDarwin
    then "darwin-config"
    else "nixos-config";
  inherit (import ./lib { inherit pkgs; }) mkNixPath fromSources;

  allSources = {
    personal = ./packages;
    nixpkgs-overlays = ./overlays;
    private = ./private;
    ${config} = ./system/configuration.nix;
  } // (fromSources sources);
in
{
  sources = allSources;
  nixPath = mkNixPath allSources;
}