The Backdrop CMS Layout system

Whether an upgrade option for D7 or a slim alternative to D10: the Drupal fork Backdrop CMS cuts a fine figure in any case, and those who know Drupal will immediately find their way around. With one exception: layouts. For newcomers, Backdrop's layout system can lead to some perplexity in the beginning. In my session, I will introduce Backdrop and its layout system and how layouts interact with the theme system.