over here at (indeterminately named neurospacetodon instance) we run right on the razors edge of using 100% of all available system resources at all times, including storage.
wrote some small notes on actually pruning database space, since tootctl by default doesn't save much space - https://wiki.neuromatch.social/Maintenance#DB_Pruning
will update as i go, the status pruning command needs some updates because currently it doesn't prune anything that's a reply ever