I am wondering how to create a child theme from a new block theme (Skatepark) with wordpress 6.0. Block themes are different than older themes. A guidance would be very welcome.
I use local on windows 10. Settings nginx, php 7.4.1, MySQL 8.0.16.
Hello there, Nikolaus! Welcome to the community. 
So exciting to dig into WordPress 6.0 + Block themes!
I’d recommend checking out this article written by Courtney Roberston: How to create a block child theme in WordPress.
It is definitely a little different with the theme.json file (I know I got tripped up without the functions.php file).
I’d love to see what you create as you dig in!
All my best,
Sam 