Thus, given any probability distribution for the initial configuration, Bohmian mechanics defines a probability distribution for the full trajectory. Thus Bohmian mechanics provides us with probabilities for completely fine-grained configurational histories that are consistent with the quantum mechanical probabilities for configurations, including the positions of instrument pointers, at single times. Born and De Broglie very quickly abandoned the pilot-wave approach and became enthusiastic supporters of the rapidly developing consensus in favor of the Copenhagen interpretation. Bohmian mechanics was rediscovered in 1952 by David Bohm, the first person genuinely to understand its significance and implications. The possibility of a deterministic reformulation of quantum theory such as Bohmian mechanics has been regarded by almost all luminaries of quantum physics as having been conclusively refuted.
Nobody knows any machinery.
In Figure 1 we have a family of Bohmian trajectories for the two-slit experiment. An ensemble of trajectories for the two-slit experiment, uniform in the slits. De Broglie showed in detail how the motion of a particle, passing through just one of two holes in screen, could be influenced by waves propagating through both holes. And so influenced that the particle does not go where the waves cancel out, but is attracted to where they cooperate. This idea seems to me so natural and simple, to resolve the wave-particle dilemma in such a clear and ordinary way, that it is a great mystery to me that it was so generally ignored.