The React and JS packages are great for most Rive projects, but if you want even more control, then you're going to need someone with Rive low-level API experience.

What can I do with the low-level Rive API that you can't with the high-level API?

Construct a scene of multiple Rive files, artboards, linear animations, and state machines, all in one <canvas> element. This is useful if you're building a game!

Control the render loop, which involves how you advance each artboard, animation, and state machine over time (including speed).

Tap into several transform property values on nodes/bones in the draw hierarchy

Reduce the file size of the Rive dependencies