This reminds me a bit of a Clojure library called Plumbing (formerly Graph): https://github.com/plumatic/plumbing https://github.com/plumatic/plumbing. It also

This reminds me a bit of a Clojure library called Plumbing (formerly Graph): https://github.com/plumatic/plumbing https://github.com/plumatic/plumbing. It also let you create a DAG for structured computation. It was used for a web service, at that time.