{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    { nixpkgs
    , flake-utils
    , self
    }:
      flake-utils.lib.eachDefaultSystem (
        system: let
          pkgs = import nixpkgs { inherit system; };
        in
          {
            defaultPackage = pkgs.callPackage ./. { };
          }
      );
}