{
  description = "A very basic flake";

  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.${system};
        test-command = ''deno test --unstable  --allow-read=tests .'';
        test =  pkgs.stdenv.mkDerivation {
          name = "test";
          src = ./.;
          buildInputs = [pkgs.deno];
          buildPhase = ''
            export DENO_DIR=`$tmp`
            deno test --import-map vendor/import_map.json --unstable  --allow-read=tests . > test_results.txt
          '';
          installPhase =  ''
          mv test_results.txt $out
          '';
        

        };
      in {
        packages = {
          test = test;
        };
        devShells.default = pkgs.mkShell { 
           buildInputs = with pkgs; [deno
                                     psrecord];
        };
      });
}