I learn best when I have a problem to solve, and with one of our D8 upgrade projects, we had a mess to clean up in the menu system. This provided an excellent oppportunity to get hands-on in Drupal core, learning some of the major differences from earlier versions, and three things in particular:

1. How easy it is to use Drupal Console to create your own tools
2. How much the menu system has changed
3. How to load and save just about any entity

The problem

Drupal 8Drupal PlanetMenuLinkContentDrupal ConsoleEntity SystemTechnical