This seems interesting. It would be really cool to rapidly prototype and modify/refactor apps using this. But it seems to me like the much harder part of this

This seems interesting. It would be really cool to rapidly prototype and modify/refactor apps using this. But it seems to me like the much harder part of this problem is 1) developing the nodes, and 2) ensuring that the nodes have the appropriate (sufficiently flexible/extensible) API for connections. I guess what I'm saying is that this needs a "standard library" of nodes - at multiple layers of abstraction - if it is to gain traction. This is especially true, given that there are several other projects that are at least functionally equivalent.