To be clear, unlike the BOT-anist, the mesh entity "Mesh01" needs to pick up another mesh entity (such as a ball) in real time and drop it in certain events, such as a collision. All while performing animations. The ball needs to attach to his hand. Mesh01 is not the Vision Pro user. But the user sees it.

Yes, AnimationLibraryComponent works fine in RCP but I need to import the same file multiple times in RCP to get all the animations (exporting them from Blender). I then need to manually add all the animations to the first file so I can build the library. Would be cool if the USD file could read the animation strips (NLA) and combining all animations in separate slots for RCP. The BOT-anist is the best example so far for this issue, thanks for guiding me to the pin system. I'm trying quite a lot but no success so far. Hopefully, I will make it work. In WWDC25 "What's new in RealityKit", the presenter says the following: There is also a new entity attach method that allows you to attach one entity to the pin of another entity. This API greatly simplifies attaching meshes to the joints of an animated skeleton. Hope this will be in VisionOS 26.