[benatkin]

The solution with Heroku is to create a separate app and use that. The app will be identical except for having fewer (and optionally different) resources. Because it's billed hourly, it doesn't cost too much to run it at full power for a short while to answer a question, before scaling it back down. The reason you needed to "invent" this feature is because your environment isn't as self-service as it could be.