Hello FritziFratz!
I'll take a look into the BrandEins Recipe tomorrow/today (this Sunday

).
I've not checked the recipe for a long time -
the source is available here:
https://github.com/consti/BrandEins-Recipe
https://github.com/consti/BrandEins-...andeins.recipe
I'll let you know what my findings were -
--
Consti