One of the biggest projects I worked on during my time at Manus was their Unreal Engine plug-in. It used the Manus SDK library to get its data, and then applied the glove data onto a skeleton.
The entire plug-in was written by me in C++. It exposed relevant functions and data types from the SDK to Blueprint so it could be used from the editor, and provided an animation Blueprint node so the output pose could be used in animations.