Also handy (regardless of framework, language, etc) is if you use feature flags, if you're using actual valid credentials against a service or a local testing service (eg S3 vs minio, etc).

Enabling this for non-technical users really helped also report any issues they would see, it was great for testing environments.

Plus you would probably end up needing all this information anyway if you do any error tracking, so it probably exists somewhere already :-).