Added nixos configs

OLD CONFIGS/nix_new/modules/nixos/services/printing.nix

@@ -0,0 +1,35 @@
+{ config, lib, pkgs, ... }:
+
+let
+  moduleName = "nixos-printers";
+in
+{
+  # ---- Printing (CUPS) ----
+  services.printing = {
+    enable = true;
+    # Good general compatibility. Many modern printers work driverless (IPP Everywhere),
+    # but these help with older models and various formats.
+    drivers = with pkgs; [
+      cups-filters
+      gutenprint
+    ];
+  };
+
+  # ---- Network printer discovery (mDNS / DNS-SD) ----
+  services.avahi = {
+    enable = true;
+    # Resolve .local names + discover services on IPv4
+    nssmdns4 = true;
+    # You're controlling firewall rules in firewall.nix
+    openFirewall = false;
+  };
+
+  # ---- Optional GUI tool to add/manage printers ----
+  environment.systemPackages = with pkgs; [
+    system-config-printer
+  ];
+
+  # allow admin actions in printer GUI (usually already present on desktop systems)
+  security.polkit.enable = true;
+  environment.etc."nixlog/loaded.${moduleName}".text = "loaded\n";
+}

OLD CONFIGS/nix_new/modules/nixos/services/sshd.nix

@@ -0,0 +1,18 @@
+# SSH client only (no server).
+# - Installs OpenSSH client tools (ssh, scp, sftp, ssh-keygen, etc.)
+# - Enables ssh-agent for user sessions
+
+{ config, lib, pkgs, ... }:
+
+{
+  # Install the OpenSSH client tools
+  environment.systemPackages = with pkgs; [
+    #openssh
+  ];
+
+  # Start ssh-agent automatically for users (handy baseline)
+  programs.ssh.startAgent = true;
+
+  # Explicitly ensure the SSH server is NOT enabled
+  services.openssh.enable = false;
+}