Form Element Reference
Drupalize.Me
https://drupalize.me/tutorial/form-element-reference?p=2766
ConfirmFormBase To Confirm an Action
Drupal.org documentation
https://www.drupal.org/docs/drupal-apis/form-api/confirmformbase-to-confirm-an-action
Drupal API Render Elements List
https://api.drupal.org/api/drupal/namespace/Drupal%21Core%21Render%21Element/9.3.x
Drupal 9: Creating Ajax Dialogs
Philip Norton, Hash Bang Code, Oct 30, 2022
https://www.hashbangcode.com/article/drupal-9-creating-ajax-dialogs
Drupal 10: Using A Lazy Builder To Create A Dynamic Button
Philip Norton, Hash Bang Code, May 28, 2023
https://www.hashbangcode.com/article/drupal-10-using-lazy-builder-create-dynamic-button