overlay/test.nix

{ pkgs ? import <nixpkgs> { overlays = [ (import ./default.nix) ]; } }:
let
  mypython = pkgs.python3.withPackages (python-pkgs: [
    python-pkgs.salt-lint
  ]);
in 
pkgs.mkShell {
  buildInputs = with pkgs; [
    mypython
  ];
}