diff --git a/demos/init-db.php b/demos/init-db.php
index b9d8571535..18eefb828e 100644
--- a/demos/init-db.php
+++ b/demos/init-db.php
@@ -146,7 +146,7 @@ public function atomic(\Closure $fx)
     }
 
     /**
-     * @param \Closure(Model): string $outputCallback
+     * @param \Closure(static): string $outputCallback
      */
     protected function wrapUserActionCallbackPreventModification(Model\UserAction $action, \Closure $outputCallback): void
     {
@@ -169,7 +169,7 @@ protected function wrapUserActionCallbackPreventModification(Model\UserAction $a
                 $action->callback = $callbackBackup;
             }
 
-            return $outputCallback($model->isEntity() && !$model->isLoaded() ? $loadedEntity : $model, ...$args);
+            return $outputCallback($model->isEntity() && !$model->isLoaded() ? $loadedEntity : $model, ...$args); // @phpstan-ignore-line
         };
     }
 
@@ -198,7 +198,7 @@ protected function initPreventModification(): void
 /**
  * Improve testing by using prefixed real field and SQL names.
  *
- * @method (static|null)                   tryLoad(WrappedId $id = null)     remove parentheses around return type once https://github.com/phpstan/phpstan/issues/10548 is fixed
+ * @method static|null                     tryLoad(WrappedId $id = null)
  * @method static                          load(WrappedId $id)
  * @method \Traversable<WrappedId, static> getIterator()
  * @method WrappedId                       insert(array<string, mixed> $row)
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 9a7e99999a..3c18aae495 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -23,6 +23,12 @@ parameters:
             message: '~^Call to method Atk4\\Ui\\App::callExit\(\) with true will always evaluate to true\.$~'
             count: 2
 
+        # assign to generic callable property is broken https://github.com/phpstan/phpstan/issues/8964
+        -
+            message: '~^Property Atk4\\Data\\Model\\UserAction::\$(callback|enabled) .*Closure<.+ does not accept .*Closure\(.+\.$~'
+            path: '*'
+            count: 2
+
         # TODO these rules are generated, this ignores should be fixed in the code
         # for level = 2
         -
diff --git a/src/Form/Control/Dropdown.php b/src/Form/Control/Dropdown.php
index 366ae3dcee..47d8561a3a 100644
--- a/src/Form/Control/Dropdown.php
+++ b/src/Form/Control/Dropdown.php
@@ -84,7 +84,7 @@ class Dropdown extends Input
      *     ];
      * }
      *
-     * @var \Closure(Model): array{title: mixed, icon?: mixed}|\Closure(mixed, array-key): array{value: mixed, title: mixed, icon?: mixed}
+     * @var \Closure<T of Model>(T): array{title: mixed, icon?: mixed}|\Closure(mixed, array-key): array{value: mixed, title: mixed, icon?: mixed}
      */
     public ?\Closure $renderRowFunction = null;
 
@@ -276,8 +276,8 @@ protected function _addCallBackRow($row, $key = null): void
             $res = ($this->renderRowFunction)($row);
             $this->_tItem->set('value', $this->getApp()->uiPersistence->typecastAttributeSaveField($this->model->getIdField(), $row->getId()));
         } else {
-            $res = ($this->renderRowFunction)($row, $key); // @phpstan-ignore-line https://github.com/phpstan/phpstan/issues/10283#issuecomment-1850438891
-            $this->_tItem->set('value', (string) $res['value']); // @phpstan-ignore-line https://github.com/phpstan/phpstan/issues/10283
+            $res = ($this->renderRowFunction)($row, $key);
+            $this->_tItem->set('value', (string) $res['value']);
         }
 
         $this->_tItem->set('title', $res['title']);
diff --git a/src/Form/Control/Lookup.php b/src/Form/Control/Lookup.php
index b8214a527e..79a1091598 100644
--- a/src/Form/Control/Lookup.php
+++ b/src/Form/Control/Lookup.php
@@ -42,7 +42,7 @@ class Lookup extends Input
      *
      * If left null, then search will be performed on a model's title field
      *
-     * @var list<string>|\Closure(Model, string): void|null
+     * @var list<string>|\Closure<T of Model>(T, string): void|null
      */
     public $search;
 
@@ -54,7 +54,7 @@ class Lookup extends Input
      * with dependency
      * Then model of the 'state' field can be limited to states of the currently selected 'country'.
      *
-     * @var \Closure(Model, array<string, mixed>): void|null
+     * @var \Closure<T of Model>(T, array<string, mixed>): void|null
      */
     public $dependency;
 
@@ -113,7 +113,7 @@ class Lookup extends Input
      * Define callback for generating the row data
      * If left empty default callback Lookup::defaultRenderRow is used.
      *
-     * @var \Closure($this, Model): array{title: mixed}
+     * @var \Closure<T of Model>($this, T): array{title: mixed}
      */
     public ?\Closure $renderRowFunction = null;
 
diff --git a/src/Form/Control/Multiline.php b/src/Form/Control/Multiline.php
index 57a332e49f..13f953094d 100644
--- a/src/Form/Control/Multiline.php
+++ b/src/Form/Control/Multiline.php
@@ -171,7 +171,7 @@ class Multiline extends Form\Control
      * Set during fieldDefinition and apply during renderView() after getValue().
      * Must contains callable function and function will receive $model field and value as parameter.
      *
-     * @var array<string, \Closure(Field, string): void>
+     * @var array<string, \Closure<T of Field>(T, string): void>
      */
     private array $valuePropsBinding = [];
 
diff --git a/src/Grid.php b/src/Grid.php
index 6b5d202dfc..65c3d6da3c 100644
--- a/src/Grid.php
+++ b/src/Grid.php
@@ -345,9 +345,9 @@ public function jsReload($args = [], $afterSuccess = null, array $apiConfig = []
      * Adds a new button into the action column on the right. For Crud this
      * column will already contain "delete" and "edit" buttons.
      *
-     * @param string|array|View                     $button     Label text, object or seed for the Button
+     * @param string|array|View                     $button Label text, object or seed for the Button
      * @param JsExpressionable|JsCallbackSetClosure $action
-     * @param bool|\Closure(Model): bool            $isDisabled
+     * @param bool|\Closure<T of Model>(T): bool $isDisabled
      *
      * @return View
      */
@@ -395,7 +395,7 @@ private function getActionButtons(): Table\Column\ActionButtons
      *
      * @param View|string                           $view
      * @param JsExpressionable|JsCallbackSetClosure $action
-     * @param bool|\Closure(Model): bool            $isDisabled
+     * @param bool|\Closure<T of Model>(T): bool $isDisabled
      *
      * @return View
      */
@@ -499,8 +499,8 @@ public function addPopup($columnName, $popup = null, $icon = 'caret square down'
      * @param string|array|View           $button
      * @param string                      $title
      * @param \Closure(View, mixed): void $callback
-     * @param array                       $args       extra URL argument for callback
-     * @param bool|\Closure(Model): bool  $isDisabled
+     * @param array                       $args     extra URL argument for callback
+     * @param bool|\Closure<T of Model>(T): bool $isDisabled
      *
      * @return View
      */
@@ -526,9 +526,9 @@ private function explodeSelectionValue(string $value): array
      * Similar to addActionButton but apply to a multiple records selection and display in menu.
      * When menu item is clicked, $callback is executed.
      *
-     * @param string|array|MenuItem                              $item
-     * @param \Closure(Js\Jquery, list<mixed>): JsExpressionable $callback
-     * @param array                                              $args     extra URL argument for callback
+     * @param string|array|MenuItem                           $item
+     * @param \Closure(Jquery, list<mixed>): JsExpressionable $callback
+     * @param array                                           $args     extra URL argument for callback
      *
      * @return View
      */
diff --git a/src/Panel/Right.php b/src/Panel/Right.php
index 724afad87b..d81cd9254d 100644
--- a/src/Panel/Right.php
+++ b/src/Panel/Right.php
@@ -148,7 +148,7 @@ public function addConfirmation(string $msg, string $title = 'Closing panel!', s
      * Callback to execute when panel open if dynamic content is set.
      * Differ the callback execution to the FlyoutContent.
      *
-     * @param \Closure(object): void $fx
+     * @param \Closure<T of LoadableContent>(T): void $fx
      */
     public function onOpen(\Closure $fx): void
     {
diff --git a/src/Table/Column/ActionButtons.php b/src/Table/Column/ActionButtons.php
index 6c192eb2f0..790181741b 100644
--- a/src/Table/Column/ActionButtons.php
+++ b/src/Table/Column/ActionButtons.php
@@ -25,7 +25,7 @@ class ActionButtons extends Table\Column
     /** @var array<string, View> Stores all the buttons that have been added. */
     public $buttons = [];
 
-    /** @var array<string, \Closure(Model): bool> Callbacks as defined in UserAction->enabled for evaluating row-specific if an action is enabled. */
+    /** @var array<string, \Closure<T of Model>(T): bool> Callbacks as defined in UserAction->enabled for evaluating row-specific if an action is enabled. */
     protected $isEnabledFxs = [];
 
     #[\Override]
@@ -41,7 +41,7 @@ protected function init(): void
      *
      * @param string|array|View                                       $button
      * @param JsExpressionable|JsCallbackSetClosure|ExecutorInterface $action
-     * @param bool|\Closure(Model): bool                              $isDisabled
+     * @param bool|\Closure<T of Model>(T): bool                              $isDisabled
      *
      * @return View
      */
@@ -79,11 +79,11 @@ public function addButton($button, $action = null, string $confirmMsg = '', $isD
      * load contents through $callback. Will pass a virtual page.
      *
      * @param string|array|View           $button
-     * @param string|array                $defaults   modal title or modal defaults array
+     * @param string|array                $defaults modal title or modal defaults array
      * @param \Closure(View, mixed): void $callback
      * @param View                        $owner
      * @param array                       $args
-     * @param bool|\Closure(Model): bool  $isDisabled
+     * @param bool|\Closure<T of Model>(T): bool  $isDisabled
      *
      * @return View
      */
diff --git a/src/Table/Column/ActionMenu.php b/src/Table/Column/ActionMenu.php
index 099c866062..67fac95f62 100644
--- a/src/Table/Column/ActionMenu.php
+++ b/src/Table/Column/ActionMenu.php
@@ -25,7 +25,7 @@ class ActionMenu extends Table\Column
     /** @var array<int, View> Menu items collections. */
     protected $items = [];
 
-    /** @var array<string, \Closure(Model): bool> Callbacks as defined in UserAction->enabled for evaluating row-specific if an action is enabled. */
+    /** @var array<string, \Closure<T of Model>(T): bool> Callbacks as defined in UserAction->enabled for evaluating row-specific if an action is enabled. */
     protected $isEnabledFxs = [];
 
     /** @var string Dropdown label. */
@@ -55,7 +55,7 @@ public function getTag(string $position, $attr, $value): string
      *
      * @param View|string                                             $item
      * @param JsExpressionable|JsCallbackSetClosure|ExecutorInterface $action
-     * @param bool|\Closure(Model): bool                              $isDisabled
+     * @param bool|\Closure<T of Model>(T): bool                              $isDisabled
      *
      * @return View
      */
diff --git a/src/Table/Column/Multiformat.php b/src/Table/Column/Multiformat.php
index 4ab78af114..4636dcee1b 100644
--- a/src/Table/Column/Multiformat.php
+++ b/src/Table/Column/Multiformat.php
@@ -14,11 +14,11 @@
  */
 class Multiformat extends Table\Column
 {
-    /** @var \Closure(Model, Field|null): list<array<0|string, mixed>|Table\Column> Method to execute which will return array of seeds for decorators */
+    /** @var \Closure<TModel of Model, TField of Field>(TModel, TField|null): list<array<0|string, mixed>|Table\Column> Method to execute which will return array of seeds for decorators */
     protected \Closure $decoratorsFx;
 
     /**
-     * @param \Closure(Model, Field|null): list<array<0|string, mixed>|Table\Column> $decoratorsFx
+     * @param \Closure<TModel of Model, TField of Field>(TModel, TField|null): list<array<0|string, mixed>|Table\Column> $decoratorsFx
      */
     public function __construct(\Closure $decoratorsFx)
     {