es not allow redirection of stdio.</pre><a href="https://janetdocs.org/os/posix-exec">Community Examples</a></div><hr><div class="binding"><span id="os/posix-fork" class="binding-sym">os/posix-fork</span> <span class="binding-type">cfunction</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/0d9e999/src/core/os.c#L1421">source</a></span> <pre class="binding-text">(os/posix-fork)

Make a `fork` system call and create a new process. Return nil if in the new process, otherwise 