Add a mandatory 0 terminator to the buffer and you suddenly get an easy compatibility with all C-shaped things (just pass the pointer to the buffer, it’s already const char*)
(No, there shouldn’t be restrictions on how many other 0 bytes are there, just that there is always one at the end. Whoever cares about integrating with C needs to make sure there are no null bytes in the middle, and Nim may just not care.)
