[out_of_protocol]

There are many different usecases, and each one have different set of requirements. E.g. - for end-user facing cli: support as much conventions as possible (-v --version, -h --help, other options similar to other compressors), sane defaults

- for automatic tasks like making backups via cron: piping, correct exit codes, level of effort configuration, silent modes for reduced logging.

Second one is likely to fly first, can be used isolated on company level if file format is stable