On December 8 PHP 8.2 was released, this new version includes many new features on the languages and some deprecations, you can see the complete list here, in this post we will try to explain some of the most important new features, not all of them.
For non Drupalers, Drush is the subsystem of Drupal that provides a CLI interface to interact with your Drupal site.
Lando is an excellent tool to setup development environments using docker in a really easy way to setup, maintain and reuse.