Do you have a strategy for secrets? Such as storing them, or using MitM to inject them (e.g., HTTP API requests)? I've used squid cache in the past, and currently use iron-proxy for this sort of feature.
Read more about the secrets handling here - https://docs.docker.com/ai/sandboxes/security/credentials/
Kits provide the ability to also define new credentials and how to inject them into new services (connect to internal systems, etc.).