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In my imagination, I'd like to have os.getenv calls at the very top of my flow.py that can pull in private vars in production for credentials and such.

If it’s a credential, did you consider using Prefect Secrets instead so that you can just pull it from the Flow?

If you need to pull from `os.get_env()` , then you can pass it through the RunConfg. For example
```flow.run_confg = DockerRun(...,env={"VARIABLE": "value"})```

What's the best example of Prefect Secrets you've got?

I guess the docs <https://docs.prefect.io/orchestration/concepts/secrets.html|here> and <https://discourse.prefect.io/t/what-are-best-practices-for-using-prefect-secrets-within-prefect-tasks/457|here>

and <https://docs.prefect.io/orchestration/concepts/secrets.html#setting-cloud-secrets|this> on how to set them