Node development shell flake

flake.nix

{
  description = "URMA Nix development environment";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          config.allowUnfree = true; # Allow unfree packages like vscode
        };
      in {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            git
            nodejs
            nodePackages.npm
            vscode
          ];
          shellHook = ''
            echo "Welcome to the development shell!"
            echo "VSCode: Run 'code .' to launch"
            echo "Node.js: $(node --version)"
            echo "NPM: $(npm --version)"
          '';
        };
      }
    );
}