What you describe sounds a lot like MobX: https://mobx.js.org/the-gist-of-mobx.html https://mobx.js.org/the-gist-of-mobx.html In the Rust world, Salsa operates

What you describe sounds a lot like MobX: https://mobx.js.org/the-gist-of-mobx.html https://mobx.js.org/the-gist-of-mobx.html In the Rust world, Salsa operates on similar principles: https://salsa-rs.github.io/salsa/ https://salsa-rs.github.io/salsa/ Personally I believe this pattern has totally solved the problem of responding to changes in state, and its use-cases are just beginning to be explored