Great! I've just spent a month trying to use a very complex machine-generated lib with nim (multiple-pass C macros and stringify were the main issues I had to tackle). I tried with c2nim first, then i moved to nimterop, then I tried manual import + nim macro, and finally I managed to get it done via c2nim with lots of #define and #mangle + nim macro to turn the result into something nicer for nim.
I was waiting for something like this and I also know that haxscramper was also working on something similar but the added complexity of C++. I will be happy to test Futhark on the aforementioned C library. Thanks!
