/drupal
Drupal is a free and open source content management framework written in PHP. Rather than shipping a finished website, it provides a modular core — nodes, fields, users, taxonomy and a hook-based extension system — that contributed modules and themes build upon.
What has always made Drupal interesting to me is that it is a framework first and a CMS second: almost everything is a hook away from being changed, which is a blessing when requirements get exotic and a curse when a site grows a module list nobody remembers approving. The trade-off shows up most clearly in the operational details — how you organise multisite installations, how much you lean on caching, and which tooling you keep close at hand.
Please find selected Drupal posts below. Topics vary from performance and multisite setups to modules and developer tooling such as Drush.