Config

Variables your app reads from its environment, and variables your team shares across several apps.

Two kinds of configuration value, both encrypted, both typed plain or secret, both injected at build time and at run time.

How it works

Environment variables are set directly on one app, with instance-wide and preview-only layers folding in around them.

Shared variables are owned by the team and linked into several apps at once, so one change reaches every app that uses it.

A linked shared variable folds in above an app's own variable of the same name. See Environment variables for the full layering order.