Hide business logic for designers

Hi, is there any way I can avoid that an external designer can see files outside “app/views”.
I want to protect the business logic from externals.

Should I have “views” in a separate dir and updating the app/views by rsync or is there a better solution ?
is there perhaps some git trick ?

regs
/taisto

This question is not related to Play.

Given that you want to share a folder with your designers, but not a subfolder, how would you solve this? Then, the same solution applies to Play folder layout.

Best.