Nix flake with node_20 + pnpm

.envrc

use_flake './flake.nix'

flake.nix

{
  description = "Flake with nodejs_20 + pnpm";

  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 = import nixpkgs {
          inherit system;
        };
      in {
        devShell = pkgs.mkShell {
          buildInputs = [
            pkgs.nodejs_20
            pkgs.nodejs_20.pkgs.pnpm
            # pkgs.nodejs_20.pkgs.yarn
          ];

          # Setup environment variables if necessary
          shellHook = ''
          export SOME_VAR="value"
          '';
        };
      }
    );
}