{ config, inputs, lib, pkgs, ... }: let printingDrivers = [ pkgs.hplip pkgs.hplipWithPlugin ]; in { options.my.services.printing = { enable = lib.mkEnableOption "printing services and drivers"; users = lib.mkOption { type = lib.types.either lib.types.str (lib.types.listOf lib.types.str); default = config.my.toggleUsers.services; description = "Users to install printing packages for"; }; }; config = lib.mkIf config.my.services.printing.enable { users.users = let packages = [ pkgs.simple-scan ]; in inputs.self.lib.mkUserPackages lib config.my.services.printing.users packages; services.printing = { enable = true; drivers = printingDrivers; }; hardware.sane = { enable = true; extraBackends = printingDrivers; }; }; }