Subman was a reference on "subscription" manager before I decided to use a different term altogether

The benefit of build over using plain derived-atom calls isn't too big, it mostly simplifies the dependency resolution, e.g. you don't have to build all atoms in a let first so you can reference them to build other atoms

hmm, so did you come up with this because of Rum, or because of Carry? I'm sorry, I'm probably being dumb, but I still don't see in what situations I should use this

what's the advantage of just using rum's derived-atoms?