[HELP!] Modifying zygote

[Matkrak]

Hi there,

I am currently working on modifying the Zygote service, but I'd like to know if someone knows a way of replacing the original zygote by my own.
Since it's written in Java, maybe I just need to compile the class and replace it ?

Or do i need to recompile my own kernel and then install it on my device ?

I'd appreciate any help.