nix-config/modules/nixos/system/printing/default.nix

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{ config, lib, pkgs, ... }:
let
cfg = config.my.system.printing;
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in
{
options.my.system.printing = with lib; {
enable = mkEnableOption "printing configuration";
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papersize = mkOption {
type = with types; either str (enum [
"a3"
"a4"
"a5"
"b5"
"letter"
"legal"
"executive"
"note"
"11x17"
]);
default = "a4";
example = "paper";
description = "preferred paper size";
};
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usb = {
enable = my.mkDisableOption "USB printers";
};
network = {
enable = my.mkDisableOption "network printers";
};
};
config = lib.mkIf cfg.enable {
# Setup CUPS
services.printing = {
enable = true;
# Drivers are deprecated, but just in case
drivers = with pkgs; [
gutenprint # Base set of drivers
brlaser # Brother drivers
# Brother MFC-L3770CDW
mfcl3770cdwlpr
mfcl3770cdwcupswrapper
];
};
# Setup paper size
systemd.services.cups.serviceConfig.Environment = [
"PAPERSIZE=${cfg.papersize}"
];
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# Allow using USB printers
services.ipp-usb = lib.mkIf cfg.usb.enable {
enable = true;
};
# Allow using WiFi printers
services.avahi = lib.mkIf cfg.network.enable {
enable = true;
openFirewall = true;
# Allow resolution of '.local' addresses
nssmdns = true;
};
};
}