cosmonim

In a word, yes. In more words: You should be able to use Cosmopolitan libc: https://github.com/Yardanico/cosmonim If something does not work for you, Yardanico is super duper helpful in all things Nim. Nim also compiles to Javascript (nim js) and C++ for integration with legacy codebases, but that is probably more to the side of your interests. While I have never seen it done and always meant to give it a try, compiling to C should allow one to also do things like write Linux kernel modules in Nim without any special support from the Linux team.

I haven't used Nim much, but I remember a repo on Github had setup a build script for compiling Nim with Cosmopolitan Libc. https://github.com/Yardanico/cosmonim This gcc patch makes such build scripts simpler, because you will need to change less of your code -- let me know how it works!

already done: https://github.com/Yardanico/cosmonim