New Olivero theme is a great new front theme introduced with Drupal 9.1. But for now Olivero is not yet stable. Still, here is a simple article to create a sub theme for Olivero.

Gitlab-CI introduced a flexible and powerful CI solution. My project Giltab CI fo Drupal 8 is meant to ease the integration with a Drupal 8 project. It is now ready to handle a single module or theme and provide a full pipeline for your testing. Here is a brief article to integrate Gitlab-CI with your module in probably less than 10 minutes! This CI includes Drupal testing (Unit, Functional...

JavaScript tests under Drupal 8 with Chrome.

Here is an almost typical use case when developing custom code for Drupal 8. A third party module declare a controller with a method that you want to override because you need to change the logic and there is no practical way to do it in the module (could be a hook). But this class implements ControllerBase with dependency injection, (and override most of the methods in ControllerBase, but this is...

Building enough Drupal 8 websites I ended up applying always the same basic set of code in my Bootstrap sub theme. Preprocess hooks are a common way in Drupal to add or manipulate variables that you can use in your Twig templates files. Suggestions hooks is a common way in Drupal 8 to extend the templates you can use for any part of your code. Here is a snippet of this, copy this in your theme...