Create language-specific keyboard maps

Hello,
I am very interested in creating Drupal websites for the Nigerian market. One of the keey needs is to ensure keyboards are mapped to local characters.

I know all required keys are available on the key board using the right key combinations. For instance our naira currency can be achieved by typing 20a6 + Alt-X. Interesting. SO I know all is possible.

How can I create maps for specific languages easy to switch to. I know this might not be a Drupal problem. With Drupal, you never know.

I would appreciate any pointers.

Thanks.