मुक्तस्रोत(Open Source)

I am developing an application using Ruby on Rails.
Whenever I deploy my application at customer end using apache, I have to put all ruby files there.
My problem is I do not want to give these ruby scripts. My deployment is not on a web hosts where only I have an access. The deployment is in customer environment where he/she can access ruby scripts.
Customer/user can copy/modify the code. This way I have major problems
1. I can not have some activation/registration code logic for licensing. Customer can go and change the "if" logic.

फायरफॉक्स ३. ० खरोखरच भारतीय भाषांसाठी वरदान ठरणार आहे. आपण हा न्याहाळक (इंटरनेट एक्स्प्लोअर सारखा ब्राउझर) येथून मिळवू शकता...
http://www.mozilla.com/en-US/firefox/

१) यात इंडीक इनपुट एक्स्टिंशन वापरून सहजगत्या मराठी लिपीत मजकूर टंकित करता येतो.