{ description = "A Nix-flake-based Node.js development environment"; inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; outputs = { self, nixpkgs }: let overlays = [ (final: prev: rec { nodejs = prev.nodejs; pnpm = prev.nodePackages.pnpm; yarn = (prev.yarn.override { inherit nodejs; }); }) ]; supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ]; forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f { pkgs = import nixpkgs { inherit overlays system; }; }); in { devShells = forEachSupportedSystem ({ pkgs }: { default = pkgs.mkShell { packages = with pkgs; [ node2nix nodejs pnpm yarn ]; }; }); }; }