{ mkDerivation }: # How to obtain `sha256`: # nix-prefetch-url --unpack https://github.com/elixir-lang/elixir/archive/v${version}.tar.gz mkDerivation { version = "1.9.4"; sha256 = "1l4318g35y4h0vi2w07ayc3jizw1xc3s7hdb47w6j3iw33y06g6b"; minimumOTPVersion = "20"; }