{ cfg, settingsFormat }: { config, lib, name, ... }: let inherit (lib) literalExpression mkOption mkEnableOption types; in { freeformType = settingsFormat.type; options = { key = mkOption { type = types.strMatching "[a-z0-9_-]*"; default = name; description = "URL-safe name for this source."; }; enable = mkEnableOption "Whether to enable this source."; }; }