1  {
 2    inputs = {
 3      utils.url = "github:numtide/flake-utils";
 4    };
 5  
 6    outputs = { self, nixpkgs, utils }:
 7      utils.lib.eachDefaultSystem (system:
 8        let
 9          pkgs = nixpkgs.legacyPackages."${system}";
10        in rec {
11         devShell = pkgs.mkShell {
12            nativeBuildInputs = with pkgs; [
13              yarn
14              nodejs-14_x
15              nodePackages.typescript-language-server
16              nodePackages.eslint
17            ];
18          };
19        });
20  }