Couple of questions

I just have a couple of questions for the group as I am looking over the
RoR/Ruby architecture for a new project that I am fixing to start
working
on.

GEM updates Windows vs Linux

I will be developing the application(s) in Windows and then promoting
them
into a Linux production environment. My question would relate to the
GEM
updates that I have made on the WIN box for the DB drivers (ie MySQL,
SQLite, Postgresql) and how to transpose the same GEM updates into the
Linux
environment. I have ran into issues where one version of the update
works
great in one environment and not the other. Is there a way to embed the
GEM
updates into the RoR application itself for promotion into another
environment?

Thank you in advance for any assistance on this.

-JW