adding modularity

modules/nixos/gdm.nix

@@ -0,0 +1,27 @@
+{
+    config,
+    lib,
+    pkgs,
+    ...
+}:
+{
+    # this actually does not enable xorg, but it is required for GDM
+    services.xserver.enable = true;
+    services.xserver.displayManager.gdm.enable = true;
+    services.xserver.desktopManager.gnome.enable = true;
+    # here we set wayland to be used
+    services.xserver.displayManager.gdm.wayland = true;
+
+
+    ## Slim down the gnome dependencies
+    environment.gnome.excludePackages = (with pkgs; [
+        gnome-photos
+        gnome-tour
+        gnome.geary
+        gnome.gedit
+        gnome.tali
+        gnome.gnome-music
+        gnome.cheese
+    ])
+
+}

modules/nixos/networks.nix

@@ -0,0 +1,26 @@
+{ config, pkgs, ... }:
+
+let
+    networks = [
+        {
+            ssid = "MyNetwork1";
+            psk = "password1";
+        }
+        {
+            ssid = "MyNetwork2";
+            psk = "password2";
+        }
+        {
+            ssid = "MyNetwork3";
+            psk = "password3";
+        }
+        {
+            ssid = "MyNetwork4";
+            psk = "password4";
+        }
+    ];
+in
+
+{
+    networking.networkmanager.networks = networks;
+}

modules/nixos/pipewire.nix

@@ -0,0 +1,15 @@
+{
+    config,
+    lib,
+    pkgs,
+    ...
+}:
+{
+  # Needs to be explicitly set to false...
+  hardware.pulseaudio.enable = false;
+  # OR
+  services.pipewire = {
+    enable = true;
+    pulse.enable = true;
+  };
+}