You can make Environment Variables auto‑create themselves

You can make Environment Variables auto‑create themselves when you add a data source to a Canvas App

There’s a setting that, once enabled, changes how makers build apps:

When you add a data source, Power Platform creates an environment variable Your app references the variable instead of a fixed value When you move the solution to Test or Prod, you’re prompted to configure it No refactoring. No last‑minute fixes. No surprises.

My advice: If you’re serious about enterprise Power Platform, enable this early and let the platform enforce good habits for you.