I actually follow expede’s repo’s pretty closely (you’ll see my comments all over). 
I’m thinking something more specific to holding multi-state, kind of a monad wrapper of a fake algebraic effects system that is still efficient (I made a horrid hack of one that works well at GitHub - OvermindDL1/elixir_effects but that was entirely an experiment to see how ‘pure’ of an algebraic effects system I could make). Basically it would replace ‘with’ and actually work well. ^.^
I made a detailed ‘what are monads’ post on these forums somewhere a while back, I think here:
Pure consistency. I want a unified block syntax here and with is only part-way there…
