Rooms (and their dice) should be culled from the datastore after they are past a certain "age."

[shanel]

14 days? 30 days?

Maybe link the cull to some action that won't happen that often? (The creation of labels?)

[shanel]

Via https://cloud.google.com/appengine/docs/standard/go/config/cron - just write an http handler that does the job and schedule a cron job to hit the url regularly.