I'm working on a threaded-prototype of netrunner where messages are passed between each other and could even be move out to IPC or even the network.
Also why I'm thinking this project is more like electron. And a browser could be built on top of that.
We've had a couple webkit developers tell us how hard it was to hijack some seemingly simple behavior. Interesting to hear that Firefox is the same way.
I'd love to compare diagrams.