I imagine this speeds up development velocity and is easy to adapt to a changing environment. I think Python is an example of the same pattern, you write your

I imagine this speeds up development velocity and is easy to adapt to a changing environment. I think Python is an example of the same pattern, you write your glue code in Python and the high performance code is in C called by C FFI from Python. I just wonder how we can write code with development velocity of Python or Lua but actually evaluate extremely fast.