{ inputs = { nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11"; flake-utils.url = "github:numtide/flake-utils"; }; description = "Development shell flake"; outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem (system: { devShell = let pkgs = nixpkgs.legacyPackages.${system}; in pkgs.mkShell { packages = with pkgs; [ deno ]; }; }); }