let
  niv-sources = import ./nix/sources.nix;
  pkgs = import niv-sources.nixpkgs { };
  src = pkgs.nix-gitignore.gitignoreSource [ "!.git" ] ./.;
  projectBuildInputs = with pkgs; [ gitMinimal shellcheck nixfmt terraform ];
in {
  test = pkgs.stdenv.mkDerivation {
    inherit src;
    name = "vps-test";
    phases = [ "unpackPhase" "buildPhase" ];
    buildInputs = projectBuildInputs;
    buildPhase = ''
      patchShebangs .
      ./tests.sh
      touch $out
    '';
  };
  shell = pkgs.mkShell {
    name = "vps-shell";
    buildInputs = projectBuildInputs;
  };
}