Hi, first off, I wish you well because I would really like that feature! I can't answer all of your questions, but just wanted to point you here: Any suggestions on what plugins could be created? - #8 by doomsy There is a plugin system in progress, although I don't know the timing of it.
Since I also am not a react dev, I went with the approach of defining a feature with the hope that I can contribute once the plugin system is available. Maybe you could do the same? I know I'd love to provide UX notes on a knowledge graph system and I bet others would too 
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I'd also be interested in your python prototype, even if it wasn't native yet. Might be a way to provide feedback there as well.