CodeIgniter and Joomla

[eluser]xwero[/eluser]
If i understand it right it's a matter of creating framework independent libraries with framework specific interfaces if they need to be implemented in an existing codebase? If that is the case the CI specific code would be minimal, or not?

I think the matchbox library gives you a good idea on how to accomplish this (Look at the file structure). You could make modules with a models, views, libraries and interfaces directory. In the libraries directory you would have the base classes (database and interface) and in the interfaces directory you would have the different files that connect with the different frameworks. There would have to be some global to check if you don't load the same libraries multiple times.

I'm not sure how this would be accomplished in joomla because i remember from my mambo days component view files are stored in different directories for admin and frontend. I guess if you want to use base code on several systems you are going to need some framework/application specific hacks to get everything running and keep your code maintainable.