Every action has an icon, such as a "plus-sign" for the "new" action

In Devise you own controllers, models and views. With Booth you don't own the models (much like ActiveStorage). The Controllers you do own, but the implementation is pretty much just calling Booth helpers. The views you own completely, just as in Devise.

Parse German DATANORM files like you belong to the 90s

A little bit like simple_form but as VewComponents and more minimalistic.

With sidebars that work well on all screen widths.