{stdenv, writeText, fetchFromGitHub }: stdenv.mkDerivation rec { name = "hex-registry"; rev = "329ae2b"; version = "0.0.0+build.${rev}"; src = fetchFromGitHub { owner = "erlang-nix"; repo = "hex-pm-registry-snapshots"; inherit rev; sha256 = "1rs3z8psfvy10mzlfvkdzbflgikcnq08r38kfi0f8p5wvi8f8hmh"; }; installPhase = '' mkdir -p "$out/var/hex" zcat "registry.ets.gz" > "$out/var/hex/registry.ets" ''; setupHook = writeText "setupHook.sh" '' export HEX_REGISTRY_SNAPSHOT="$1/var/hex/registry.ets" ''; }