{ mkDerivation }: # How to obtain `sha256`: # nix-prefetch-url --unpack https://github.com/erlang/otp/archive/OTP-${version}.tar.gz mkDerivation { version = "24.1.7"; sha256 = "sha256-R4rZVMn9AGvOy31eA1dsz2CFMKOG/cXkbLaJtT7zBrU="; }