_: { perSystem = { config, lib, pkgs, ... }: { devShells.default = pkgs.mkShell { packages = (with pkgs; [ go gopls gleam beamPackages.erlang (beamPackages.rebar3WithPlugins {plugins = [beamPackages.pc];}) python311 pre-commit ruff ty cargo rustc ]) ++ [config.packages.glinter] ++ lib.attrValues config.treefmt.build.programs; }; }; }