https://kristoff.it/blog/zig-self-hosted-now-what/
C backend
We are also working on a special backend, one that produces C source code. Progress on the C backend has recently shot forward (87% and counting) thanks to an amazing contribution.
What's interesting about this backend is that it will play a role in our plan to replace the old bootstrap compiler implementation and, perhaps even more interestingly, it will allow Zig to target architectures not supported by LLVM, including ones that force you to use a specific C compiler, like certain game console platforms.