{
  pkgs ? import <nixpkgs> { }
}:

let
    lua = pkgs.lua.withPackages(ps: with ps; [ busted]);
    python = pkgs.python311.withPackages(ps: with ps; [ pytest ]);

in pkgs.mkShellNoCC {
  name = "exercism";
  buildInputs = [
    # coreutils provides "make" for c compiling
    pkgs.coreutils
    lua
    python
  ];

  shellHook = ''
    # Expose exercism binary to PATH, see: https://exercism.org/cli-walkthrough
    export PATH="$(pwd):$PATH"
  '';
}