{ withSystem, ... }: let name = "today2"; in { perSystem = { pkgs, ... }: { packages.${name} = pkgs.writeShellApplication { inherit name; runtimeInputs = with pkgs; [ coreutils ]; text = ''date "+%F"''; }; }; flake.modules.homeManager.base = { pkgs, ... }: { home.packages = [ (withSystem pkgs.system (psArgs: psArgs.config.packages.${name})) ]; }; }