refactoring for iServer and isWorkstation: part 1

hosts/modules/networking.nix

@@ -0,0 +1,45 @@
+{
+  hostType,
+  inputs,
+  lib,
+  ...
+}:
+
+{
+  config = lib.mkMerge [
+    # Common configuration
+    {
+      networking = {
+        networkmanager.enable = true;
+        firewall.enable = true;
+      };
+
+      services = {
+        tailscale = {
+          enable = true;
+          extraUpFlags = [ "--operator=user" ];
+        };
+        openssh.enable = true;
+      };
+    }
+
+    # Server specific configuration
+    (lib.mkIf hostType.isServer {
+      services.tailscale = {
+        extraSetFlags = [ "--advertise-exit-node" ];
+        useRoutingFeatures = "server";
+      };
+    })
+
+    # Workstation specific configuration
+    (lib.mkIf hostType.isWorkstation {
+      services = {
+        tailscale.useRoutingFeatures = "client";
+        nginx = {
+          enable = true;
+          virtualHosts."localhost".root = inputs.homepage;
+        };
+      };
+    })
+  ];
+}