✨ make printer accessible via network

components/gui/cups.nix

@@ -1,28 +0,0 @@
-{ config, lib, ... }:
-with lib;
-{
-
-  options.components.gui.cups.enable = mkOption {
-    type = lib.types.bool;
-    default = config.components.gui.enable;
-  };
-
-  config = mkIf (config.components.gui.cups.enable) {
-
-    hardware.printers.ensurePrinters = [
-      {
-        description = "Lexmark E350d";
-        deviceUri = "usb://Lexmark/E350d?serial=622Z9ZC";
-        location = "office";
-        name = "Lexmark_E350d";
-        model = "drv:///sample.drv/generic.ppd";
-        ppdOptions = {
-          job-sheets = "none, none";
-          media = "na_letter_8.5x11in";
-          sides = "one-sided";
-        };
-      }
-    ];
-
-  };
-}

components/gui/default.nix

@@ -14,7 +14,6 @@ with lib;
     # todo : structure with home-manager and such is not cool, create another structure
     ./audio.nix
     ./browser.nix
-    ./cups.nix
     ./home-manager
     ./kde.nix
     ./kmonad.nix

homes/common/packages.nix

@@ -33,6 +33,8 @@ with lib;
         genpass
         tree
         killall
+
+        nom # nix output monitor
         nix-tree
 
         vulnix

machines/chungus/configuration.nix

@@ -46,6 +46,7 @@
     ./service-atuin.nix
     ./service-forgejo.nix
 
+    ./service-cups.nix
     ./service-paperless-backup.nix
     ./service-paperless-tika.nix
     ./service-paperless.nix
@@ -78,8 +79,6 @@
 
   healthchecks.closed.wg0.host = "10.100.0.2";
 
-  services.printing.enable = false;
-
   networking.hostName = "chungus";
 
   # nix-shell -p speedtest_cli --run speedtest

machines/chungus/service-cups.nix

@@ -0,0 +1,53 @@
+{
+  pkgs,
+  zerotierInterface,
+  config,
+  ...
+}:
+{
+
+  #networking.firewall.interfaces.${zerotierInterface}.allowedTCPPorts = [ 631 ];
+  networking.firewall.allowedTCPPorts = [ 631 ];
+
+  services.printing = {
+    enable = true;
+    listenAddresses = [ "[::]:631" ];
+    extraConf = "ServerAlias chungus.bear chungus.ingolf-wagner.de";
+    allowFrom = [ "all" ];
+    defaultShared = true;
+    browsing = true;
+    browsedConf = ''
+      BrowseRemoteProtocols dnssd
+      CreateIPPPrinterQueues All
+    '';
+  };
+
+  hardware.printers.ensureDefaultPrinter = "Lexmark_E350d";
+
+  hardware.printers.ensurePrinters = [
+    {
+      description = "Lexmark E350d";
+      deviceUri = "usb://Lexmark/E350d?serial=622Z9ZC";
+      location = "office";
+      name = "Lexmark_E350d";
+      model = "drv:///sample.drv/generic.ppd";
+      ppdOptions = {
+        job-sheets = "none, none";
+        media = "iso_a4_210x297mm"; # ← A4 statt Letter
+        sides = "two-sided-long-edge"; # ← Doppelseitig, wie ein Buch
+      };
+    }
+  ];
+
+  # avahi is needed for cups to work nice and smooth
+
+  healthchecks.localCommands.test-avahi = pkgs.writers.writeBash "test-avahi" ''
+    dig @${config.clan.core.vars.generators.zerotier.files.zerotier-ip.value} -p 5353 _ipp._tcp.local. PTR +time=3 +tries=1 +retry=0
+  '';
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    openFirewall = true;
+  };
+
+}