I thought so too about Nim, but then I realized how easy it is to call c libs from nim. There is infinate amount of c and c++ libs out there.
Wrapping a C++ header-only template library: https://github.com/status-im/nim-ttmath
Generating Cuda C++ Functor: https://github.com/mratsim/Arraymancer/blob/master/src/tenso...