Here are some places where you can look for information about Functional Real-time Interactive Endogenous Neuromodulation and Decoding (FRIEND):

Homepage
Functional Real-time Interactive Endogenous Neuromodulation and Decoding (FRIEND) has a homepage that can be found at https://github.com/InstitutoDOr/FriendENGINE/blob/master/README.md
Forums
  1. open-discussion: General Discussion
Wiki
Functional Real-time Interactive Endogenous Neuromodulation and Decoding (FRIEND) has a wiki that can be found here.