{ description = "System"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; flake-utils = { url = "github:numtide/flake-utils"; }; }; outputs = { nixpkgs, flake-utils, ... }: flake-utils.lib.eachDefaultSystem ( system: let pkgs = import nixpkgs { inherit system; }; in { devShells = { default = pkgs.mkShell { buildInputs = with pkgs; [ go gopls codex ]; }; }; } ); }