{
  description = "APKs demonstrating class shadowing.";
  inputs = {
    nixpkgs.url = github:nixos/nixpkgs/nixos-unstable;
    flake-utils.url = github:numtide/flake-utils;
  };

  outputs = { self, nixpkgs, flake-utils }: 
    flake-utils.lib.eachDefaultSystem (system:
    let
      pkgs = nixpkgs.legacyPackages.${system};
    in rec {


      devShells.default = pkgs.mkShell {
          packages = [ pkgs.hello ];
      };
    })
  ;
}