Jiggle Physics With Geometry Nodes in Blender
harryblends steps through the tools and techniques I used in Blender to create DEREK – simulated procedural creature with customizable jiggle physics.
I developed him as an experiment in creating secondary motion with geometry nodes and here I build him bit by bit, explaining all the principles that make him work.

Congratulation! You now have a Derek… :D
Brilliant tutorial. Love your videos on geonodes.