[Jach]

Nim compiles to C, so can at least make use of fast C compilers. But the solution really seems to be to just use a fully dynamic language like Common Lisp that can compile, load, and redefine (hotswap) everything incrementally so you're not having to start from nothing all the time.

[jstimpfle]

Compiling to C is not a compile performance advantage. If anything it slows you down as described in the article (header files). It's just not as bad as C++.