drupal debug - SERP Analysis

https://www.drupal.org/docs/develop/development-tools/xdebug-debugger

https://drupal.stackexchange.com/questions/127182/how-do-i-enable-developer-debugging-mode

https://www.drupal.org/docs/develop/theming-drupal/twig-in-drupal/debugging-twig-templates

https://anyforsoft.com/blog/6-ways-debug-drupal-8/

https://opensenselabs.com/blog/drupal-debug

https://optasy.com/blog/advanced-drupal-troubleshooting-techniques

https://www.youtube.com/watch%3Fv%3DyLToLP6QeLQ

https://drupalize.me/topic/debug-drupal-code

https://www.urbaninsight.com/article/debugging-drupal

https://sjinnovation.com/drupal-9-debugging-techniques-all-you-need-know