How can I create a custom Gutenberg block with dynamic content?

<!-- BEGIN COPY / PASTE -->
    // Register a dynamic block
    function my_dynamic_block_init() {
        register_block_type('my-plugin/dynamic-block', array(
            'render_callback' => 'my_dynamic_block_render',
        ));
    }
    add_action('init', 'my_dynamic_block_init');

    // Render callback function
    function my_dynamic_block_render($attributes) {
        // Fetch dynamic content, e.g., posts, from the database
        $recent_posts = wp_get_recent_posts(array('numberposts' => 5));
        $output = '<ul>';
        foreach ($recent_posts as $post) {
            $output .= '<li>' . esc_html($post['post_title']) . '</li>';
        }
        $output .= '</ul>';
        return $output;
    }
    <!-- END COPY / PASTE -->