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And someone built a spreadsheet with Electric Clojure

Also in Clojure, and reactive, and relational: https://github.com/wotbrew/relic

> Functional relational programming for Clojure(Script).

Last I tried to look on Github I couldn't actually find any projects that use Missionary. Compared it to something like Javelin - it's all very baroque. That said, it does seems to solve a much larger problem space particularly when it comes to error state handling (and propagation)

I think this space also overlaps with rules engines and it's all still in flux - in an exciting way :))

What are the YouTube talks? Did you have a specific one in mind?

I'd start with this one: https://www.youtube.com/watch?v=xtTCdT6e9-0