{ lib, config, ... }: let sonarr_data_directory = "/var/lib/sonarr/.config/NzbDrone"; in { config = lib.mkIf (config.services.sonarr.enable && config.host.impermanence.enable) { assertions = [ { assertion = config.services.sonarr.dataDir == sonarr_data_directory; message = "sonarr data directory does not match persistence"; } ]; environment.persistence."/persist/system/root" = { directories = [ { directory = sonarr_data_directory; user = "sonarr"; group = "sonarr"; } ]; }; }; }