The “variations” part doesn’t seem like a good example - fetch vs get isn’t the greatest API, but smashing them together and then control-coupling to an option list isn’t great either.
Re: “where cruft and redundancies have been removed for better performance” in the conclusion - is there any research measuring the performance impact of having unused functions in Elixir? There’s definitely an impact in client-side-Javascript-land, but that’s a very different environment.
