The reason they didn't use redux was explained in the medium post.[1] > We just used global mutable state instead of the whole immutable Reduxy patterns people

The reason they didn't use redux was explained in the medium post.[1] > We just used global mutable state instead of the whole immutable Reduxy patterns people liked to enforce. It was simple and it worked great. [1] https://medium.com/@gabriel_20625/technical-lessons-from-building-a-compiler-startup-for-3-years-4473405161cd https://medium.com/@gabriel_20625/technical-lessons-from-bui...