My personal experience with cython (and why I'm less than lukewarm about it) is that it's about as much fun as C to write and only really helps wih he annoyance

My personal experience with cython (and why I'm less than lukewarm about it) is that it's about as much fun as C to write and only really helps wih he annoyance of dealing with PyObject. That's something that was not even required for the sourcemap lib. Debugging and writing cython that is fast is feally not a very pleasant experience and the tooling is not great. Let alone that a real ecosystem exists. There is not even a good way to deal with dependencies at compile time.