Hello I add a line to contact you (I can't found your email). I'am interested to help you in developing the binding of SDL2.
I want to develop a prototype of a zoom user interface in Rust. To concentrate on the UI logic and less on the graphic part, I thought to use SDL2.
I need text, graphic(drawing), touch gesture, OpenGL (3D) and vectore graphic. The last two requirements are not mandatory for the proto.
SDL2 seems a good  choice.
We can share the work. If you have a plan for the binding, tell me.
Best,
Philippe