Example code for a local actions deriver

<?php

namespace Drupal\listing_actions\Plugin\Derivative;

use Drupal\Component\Plugin\Derivative\DeriverBase;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides creation actions for content listings filtered to one node type.
 */
class ContentLocalActions extends DeriverBase implements ContainerDeriverInterface {

  use StringTranslationTrait;

  /**
   * Constructs the deriver.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
   *   The entity type manager.
   */
  public function __construct(protected EntityTypeManagerInterface $entityTypeManager) {}

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, $base_plugin_id) {
    return new static($container->get('entity_type.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function getDerivativeDefinitions($base_plugin_definition): array {
    $this->derivatives = [];
    $view = $this->entityTypeManager->getStorage('view')->load('content');
    if (!$view || !$view->status()) {
      return $this->derivatives;
    }

    foreach ($view->get('display') as $display_id => $display) {
      if ($display['display_plugin'] !== 'page') {
        continue;
      }

      $options = $display['display_options'];
      if (($options['enabled'] ?? TRUE) === FALSE) {
        continue;
      }

      // Only use filters explicitly overridden for this display.
      if ($options['defaults']['filters'] ?? TRUE) {
        continue;
      }
      $filter = $options['filters']['type_1'] ?? [];
      $types = $filter['value'] ?? [];
      if (($filter['entity_type'] ?? NULL) !== 'node' || ($filter['field'] ?? NULL) !== 'type') {
        continue;
      }
      if (($filter['operator'] ?? NULL) !== 'in' || !empty($filter['exposed']) || count($types) !== 1) {
        continue;
      }

      $node_type = $this->entityTypeManager->getStorage('node_type')->load(reset($types));
      if (!$node_type) {
        continue;
      }

      $this->derivatives[$display_id] = [
        'title' => $this->t('Add @label', [
          '@label' => $node_type->label(),
        ]),
        'route_name' => 'node.add',
        'route_parameters' => [
          'node_type' => $node_type->id(),
        ],
        'appears_on' => ['view.content.' . $display_id],
      ] + $base_plugin_definition;
    }

    return $this->derivatives;
  }

}