{ mkDerivation }: # How to obtain `sha256`: # nix-prefetch-url --unpack https://github.com/erlang/otp/archive/OTP-${version}.tar.gz mkDerivation { version = "23.3.4.2"; sha256 = "QAIkiYBhYnUzyRg70SQ4BwjjYqclDA4uruqRNTgB2Sk="; }