diff --git a/lib/src/form/src/controller.dart b/lib/src/form/src/controller.dart
index f7c296f..2c50cc1 100644
--- a/lib/src/form/src/controller.dart
+++ b/lib/src/form/src/controller.dart
@@ -7,6 +7,10 @@ import './models/models.exports.dart';
 /// Manages a registry of reactive [AstromicFieldNode]s, handles dynamic group creation via UUIDs,
 /// and provides a robust validation mechanism covering both visible and hidden fields.
 class AstromicFormController {
+  AstromicFormController({
+    this.errorStream,
+  });
+
   /// The global key attached to the [Form] widget for integrated Flutter validation.
   final GlobalKey<FormState> key = GlobalKey<FormState>();
 
@@ -20,10 +24,10 @@ class AstromicFormController {
   /// Accessor for the map of group definitions currently registered in the controller.
   Map<String, AstromicFormGroupDefinition> get groupDefs => _groupDefs;
 
-  final StreamController<List<(String code, String? message)>> _errorStreamController = StreamController.broadcast();
+  // final StreamController<List<(String code, String? message)>> _errorStreamController = StreamController.broadcast();
 
   /// A stream that emits a list of error codes and messages for external handling.
-  Stream<List<(String code, String? message)>> get errorStream => _errorStreamController.stream;
+  final Stream<List<(String code, String? message)>>? errorStream;
 
   /// Registers a [AstromicFormGroupDefinition] to the controller to enable dynamic instance handling.
   void registerGroup(AstromicFormGroupDefinition def) {
@@ -67,7 +71,7 @@ class AstromicFormController {
       return newNode;
     }
 
-    throw Exception("Node $id not found and cannot be lazy-inited for type $T. Provide an initialValue.");
+    throw Exception('Node $id not found and cannot be lazy-inited for type $T. Provide an initialValue.');
   }
 
   Type _typeOf<T>() => T;
@@ -130,7 +134,7 @@ class AstromicFormController {
   /// Adds a new instance to a dynamic group, generating a UUID and initializing all schema fields.
   String addGroupInstance(String groupId, {String? parentUuid, Map<String, dynamic>? initialData}) {
     final def = _groupDefs[groupId];
-    if (def == null) throw Exception("Group $groupId not registered.");
+    if (def == null) throw Exception('Group $groupId not registered.');
 
     final newUuid = DateTime.now().microsecondsSinceEpoch.toString();
 
@@ -228,6 +232,5 @@ class AstromicFormController {
       if (n is AstromicFieldNode) n.disposeUI();
       n.dispose();
     }
-    _errorStreamController.close();
   }
 }
diff --git a/lib/src/form/src/widgets/string_form_field.dart b/lib/src/form/src/widgets/string_form_field.dart
index 3c6565a..140b8d0 100644
--- a/lib/src/form/src/widgets/string_form_field.dart
+++ b/lib/src/form/src/widgets/string_form_field.dart
@@ -79,7 +79,9 @@ class _AstromicStringFormFieldState extends State<AstromicStringFormField> {
       }
     }
 
-    widget.formController.errorStream.listen(_handleApiErrors);
+    if (widget.formController.errorStream != null) {
+      widget.formController.errorStream!.listen(_handleApiErrors);
+    }
   }
 
   @override
diff --git a/pubspec.lock b/pubspec.lock
index b52d955..59f4529 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -14,7 +14,7 @@ packages:
     description:
       path: "."
       ref: master
-      resolved-ref: "02dd66516d8da7fb5f927249529e72eb00785bf0"
+      resolved-ref: ad116fd32b1fb75b2facca66ab9ded0f13bf86b6
       url: "https://git.micazi.dev/micazi/astromic_elements.git"
     source: git
     version: "0.1.3"
@@ -230,10 +230,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
       url: "https://pub.dev"
     source: hosted
-    version: "1.16.0"
+    version: "1.17.0"
   nested:
     dependency: transitive
     description: