pkgs: attrs: with pkgs; with attrs; rec { version = "3.19.0"; passthru.version = version; src = fetchFromGitHub { owner = "protocolbuffers"; repo = "protobuf"; rev = "v${version}"; hash = "sha256-70SSdx7wzcNBS50/2M64SU5LRZ1LgrRHfCBjeBrJpGc="; }; }