I think I'll make a spline plugin for Unity soon

I've spent a huge amount of time learning and implementing splines, it seems weird *not* to turn it into a complete package that can be useful for others, especially when it can potentially help sustain me financially too

what are some features you would want/expect from a plugin centered on splines?

things from the top of my head:
1. bezier/catmull-rom/hermite/bspline/nurbs support
2. uniform-speed interpolation support
3. basic functions like closest-point-on-spline, bounds, offset coordinates, etc.
4. both a code API and a component based workflow

the biggest gap in my knowledge and research around splines is rotation interpolation, which is a whole can of worms in and of itself
I might get away with the standard boring implementation, but, I usually like going the extra mile of polish, but it's a pretty long mile