{ stdenv
, zsh
}:

stdenv.mkDerivation rec {
  pname = "persistent-nix-shell";
  version = "0.1";
  src = ../persistent-nix-shell;

  phases = [ "buildPhase" "installPhase" ];

  inherit zsh;

  buildPhase = ''
    substituteAll $src persistent-nix-shell
  '';

  installPhase = ''
    install -m 0755 -D -t $out/bin \
      persistent-nix-shell
  '';
}