You mean build a user interface (UI)? We are developing several things right now, some of them being developer tools. User interface libraries are usually meta-platform and are very advanced tools already.
Our focus is to simplify everything that has to do with EOS development, but we have to pick our battles as they say, and not try to reinvent what's already there. We are however working on some pretty advanced, universal frameworks for transacting on EOS, this is part of the Joint project.
I am excited to see what is functional on the mainnet once it launches!! Thanks for the reply @tokenika