let release2105 = import ./nixpkgs-2105.nix { }; in { pkgs ? release2105, lib ? pkgs.lib, python ? pkgs.python3 }: let tools = pkgs.callPackage ./tools {}; in pkgs.mkShell { shellHook = '' export NIX_PATH="nixpkgs=${pkgs.path}"; ''; buildInputs = [ tools pkgs.morph pkgs.jp ]; }