If Elm had extensible unions I would advocate as much as possible staying away from nested hierarchies. They lock you into a single access pattern. Unfortunatel

If Elm had extensible unions I would advocate as much as possible staying away from nested hierarchies. They lock you into a single access pattern. Unfortunately Elm does not, so nested hierarchies it is. Relevant Discourse thread that discussed this: https://discourse.elm-lang.org/t/idea-extensible-union-types-and-benefits-they-bring-for-real-world-elm-code/6118/5 https://discourse.elm-lang.org/t/idea-extensible-union-types...