The Faust audio DSP language can be used in the VCV Prototype. This is available for testing on OSX only for now. Look at the documentation here to compile and install it.
Since I’m newbie in the world of modular synthesis 
, comments and feedback welcome !
Waiting for the Windows version with anticipation, Pd is on the way and I hope someone will get Csound to works also…
On OSX, a bit simplified procedure to compile the Faust VCV Prototype with a precompiled version of libfaust library, see: https://github.com/sletz/VCV-Prototype/blob/master/Faust.md