{ pkgs, lib, config, ... }: let inherit (lib) mkIf optional; cfg = config.myOptions.workstation.printing; cfgUser = config.myOptions.system.username; in { config = mkIf cfg.enable { # enable cups and add some drivers for common printers services = { printing = { enable = true; drivers = with pkgs; [ gutenprint hplip ]; }; # required for network discovery of printers avahi = { enable = true; # resolve .local domains for printers nssmdns4 = true; # open the avahi port(s) in the firewall openFirewall = true; }; }; environment.systemPackages = optional cfg.hplip.enable pkgs.hplip; myOptions.system.impermanence.home.extraDirectories = optional cfg.hplip.enable ".hplip"; # Support for SANE (Scanner Access Now Easy) scanners hardware.sane = { enable = true; extraBackends = optional cfg.hplip.enable pkgs.hplipWithPlugin; }; users.extraGroups.scanner.members = ["${cfgUser}"]; users.extraGroups.lp.members = ["${cfgUser}"]; }; }