This satisfyingly comfy Default Cube was inspired by Jan Van Den Hemel procedural 1 minute tutorial:
https://twitter.com/JanvandenHemel/status/1270100984224722946?s=20
I use Blender, Sverchok and Sorcar Nodes to follow the recipe from Jan:
https://twitter.com/JanvandenHemel/status/1270100984224722946?s=20