feat(network): adding options for dns and search

modules/server/tailscale/default.nix

@@ -0,0 +1,28 @@
+{
+  config,
+  lib,
+  self,
+  ...
+}:
+with lib; let
+  cfg = config.server.tailscale;
+in {
+  options.server.tailscale = {
+    enable = mkEnableOption "Enable tailscale server configuration";
+  };
+
+  config = mkIf cfg.enable {
+    age.secrets.sobotkaTsAuth.file = "${self}/secrets/sobotkaTsAuth.age";
+
+    services.tailscale = {
+      enable = true;
+      openFirewall = true;
+      useRoutingFeatures = "server";
+      authKeyFile = config.age.secrets.sobotkaTsAuth.path;
+      extraSetFlags = [
+        "--advertise-exit-node"
+        "--advertise-routes=192.168.88.0/24"
+      ];
+    };
+  };
+}