Hi team, I have recently integrated our Slack with Growthbook. To do that I followed your guide and copied/pasted the newly-created Slack app credentials in the Growthbook app pop up. Ideally however, I would like to store those credentials as secrets somewhere and reference them when setting up the integration, see attached example for what I have in mind. Just wanted to confirm with you that at the moment this is not possible, as I don't see any env variable supporting this functionality https://docs.growthbook.io/self-host/env NB: we are self-hosting