Check automatically if a repository is not longer reachable or used
It would be nice to have an script which is run by the CI system periodically checking whether the URLs, repositories, etc are reachable (still exist) and show an error. It would also be good to check if a repository hasn't been updated for more than a period of time (1 Year?) and show a warning.
This information will make more visible and easy to check which repositories are outdated in trove.