I periodically help out with the Faust signal processing language. Faust is a programming language specifically designed for real-time signal processing. It outputs C++ code that can be used in a plug-in.
I first helped get the Faust compiler working on Windows. Then, more recently, I helped with the VSTi architecture that allows you to make a VST Instrument from Faust code. Now you can create a fully functional VSTi with Faust.
This is my first time of being an author on a published paper which is exciting! It was presented at Linux Audio Conference 2014. You can check it out here: