Module env_override 

Environment variable overrides for atrg.toml configuration.

Any field in Config can be overridden at runtime via an environment variable. The naming convention uses a double-underscore (__) to separate the section from the field:

Config field	Env var
app.name	ATRG_APP__NAME
app.host	ATRG_APP__HOST
app.port	ATRG_APP__PORT
app.secret_key	ATRG_APP__SECRET_KEY
app.environment	ATRG_APP__ENVIRONMENT
app.cors_origins	ATRG_APP__CORS_ORIGINS
auth.client_id	ATRG_AUTH__CLIENT_ID
auth.redirect_uri	ATRG_AUTH__REDIRECT_URI
auth.scope	ATRG_AUTH__SCOPE
database.url	ATRG_DATABASE__URL

For app.cors_origins, provide a comma-separated list of origins, e.g. ATRG_APP__CORS_ORIGINS="http://localhost:5173,https://example.com".

Invalid values (e.g. a non-numeric ATRG_APP__PORT) are logged as warnings and silently ignored — the original config value is preserved.

Functions

apply_env_overrides

Apply environment variable overrides to a mutable Config.