FFI scares me if I am being honest and that is why I always try to think of a language which can do a lot of things themselves without having to reach for FFI thinking its going to be my last resort most of the time.

So that was my perspective when I had written up my comment.

What are some really good languages for FFI? Lua as you suggest?

I have always had this notion that FFI is really hard and so firstly I would like to ask if that's really true and secondly is there a langauge which can make it easy to work with FFI the most? Like do you suggest lua for something?