Or thanks to elixir's pipeline operator: err |> thunk() |> unlift() |> lift() |> thunk() Which is already more readable. And I choosed the R

Or thanks to elixir's pipeline operator: err |> thunk() |> unlift() |> lift() |> thunk() Which is already more readable. And I choosed the Rust terminology for a reason, I think and_then/or_else is way clearer than fmap/bind. But I agree, I would love for Elixir to have a builtin Result type.