At this moment it is purely my tool and is in the final stages of development, but is not complete and I do not know if I'll share it.
Now I am preparing to create my first movie and this tool I developed for the awesome final scene where I need quick response solver to be able to simulate several situations and chose the one which most appeals to me.
For this movie, I created the Digital Assets for generating plants, comfortable and realistic driving a car, generating roads, mountains, flashes, … etc
maybe I'll share more things than this, maybe not.
fsimereyBullet engine(in last version) for Houdini does not support constraints and many other features, and its further development is quite uncertain. ODE maybe not the fastest, but it is also fast and stable.
Great job
Witch difference between your solution and Bullet Engine + Voronoi fracture ?