Translation patches as game updates?

Is it possible to make .cia's that act as game updates for an existing game, and use that technique to make translation patches for games? I mean for use on hacked firmwares, of course.

I'm a skilled reverse engineer, so figuring out how a game works and how to change the text isn't the problem; it's how to install it.

By releasing as a .cia, I wouldn't have to distribute the whole game.