Great to see everything is quiet again around here

If Tau is ready - someday, when it is ready - I presume the work only begins. As a community. What is a smart roadmap to:
1) Get educated in the right fields to be able to use/program Tau? What should neccesarily be learned already?
2) How to get some experience, before Tau's ready, that is useful? What language? Or knowledge? Or skills?
Basically: What's is relevant to have done to be prepared once this network is up and running and Tau needs some serious usecases and testing?