rc.local equivalent

[Morgan Reed]

I'm working on a small footprint semi-embedded system, I need a means
to load and save parts of /var (which is a memory-backed filesystem)
at boot and shutdown.

Given that rc.local is now deprecated, what is the "correct" way to
perform extra startup/shutdown processes, should I write an rc.d
script for it and insert it into the rcorder appropriately, or is
there another mechanism?

Thanks in advance

Morgan