Use Case For Developers - Storing and Sharing Credentials

I'm novice and new to keybase, but I have seen a common problem I'm hoping Keybase could potentially solve.

Many integration tests require credentials like connection strings to be used during development on many different developer machines. Some credentials are user-specific, others are shared. Many teams have many methods for sharing these, few of which are ideal, almost none of which are encrypted end to end.

Is it possible to have an effective workflow using Keybase where:
-Each developer has a standard file or location for personal test credentials
-Teams can have a standard file or location for shared test credentials

The issue does not identify files, tests, or an implementation entry point. First review the Keybase client’s existing storage and team-sharing capabilities, then define a supported workflow for personal and shared integration-test credentials and document how completion would be verified.

Written by the indexing model from the issue text.