Context: Discord thread

Right now, when you create a new environment or when a PR environment is created, you have to manually add all of your services' (including your databases') environment variables. This makes it so that PR environments very much do not just work (tm) - right now, PR environments crash as soon as they're created without manual intervention, as your database doesn't get the environment variables it needs to run and neither do your services. I don't think this is ideal.