No i don't let develop anything from scratch. So it means that the changed code had to be made public which means again that everyone could build his own MOS-Emu... which is bad because you could just share images.(piracy)

I am talking about:
Create a fictional PPC HArdware based on Dolphins code
A WII HD with more Ram if you like.

Port MOS to this fictional Hardware

Secure the install-process to make piracy impossible.
My solution is to use a native(not emulated) installer and use a Key which is part of the Bios(and on top personalized).

That is all. A mixture of patching an existing Emu and an native(closed source) installer with some security checks running natively.