I was just thinking of making something like this last night but using FLENG instead of Erlang ;) I'm really glad more people are taking inspiration from Node-RED, I will definitely be playing with this!
FLENG[1] - Wow, "low level concurrent logic programming language descended from Prolog" - sounds like an easy swap out for Erlang since they have the same heritage. ;)
[1] http://www.call-with-current-continuation.org/fleng/fleng.ht...