Backdrop CMS is a free and open-source Content Management System (CMS) with a built-in upgrade from Drupal 7. This makes it more usable to Drupal users due to shared functionality. It's fast with great performance, has responsive user interfaces allowing for use on many devices, and provides add-ons that enhance functionality. Backdrop CMS is suitable for businesses and non-profits. This article explains how to install Backdrop CMS on Debian 11.0 server. Perform the following steps first: * [Dep......