How to create a realtime feather system with ParticleFlow

this is a very optimized solution to drive the behavior of particles by the deformation of a surface without to use script or complex rigs, this system can be useful not only to animate but just to model objects that have a large number of elements like tiles on a roof or to drive fractured objects to follow a deforming surface and so on, if you like this please let me know so I will produce more tutorials about the various implementations of this system