> My point was that this seems like basic application of simple concepts from Computer Science I'm not sure that differential dataflow is that simple as I have

> My point was that this seems like basic application of simple concepts from Computer Science I'm not sure that differential dataflow is that simple as I haven't checked the paper nor the repository—according to other replies, it isn't—but if it were, that's all the more reason to use a library/tool instead of reimplementing something for the thousandth time, I think.