A configuration file may be provided through standard input. Without a configuration file, execute `python main.py`. By default, all the available distributions will be checked. With a configuration file, execute `python main.py < name_of_config_file.in`, for example, `python main.py < example.in`. In this case, only the distributions listed in the configuration file will be checked.
if we can just view their repo online, we only have to remember the link for their repo and then check the latest timestamp in their repo the same way we check ours
even if the date relies on a specific file in their repo, we can still find the right link for it
