betterC is a niche restricted feature set. If you don't already
have a use case in mind, I'd recommend avoiding it.
It is for cases where you're stuck with certain limitations to
integrate with the outside world. Like running on peculiar
hardware or interoperating with certain outside programs where
you can't initialize the runtime properly (and even then, you
might be better off going with a custom minimal runtime over the
betterC prepackaged restrictions).
Some libraries try to be compatible with it so they can be used
in those special cases too, but you probably don't need it.
