I'm working on a solution [0] for this. My current approach is:

1. Create a new Git worktree

2. Create a Docker container w/ bind mount

3. Provide an interface for easily switching between your active worktrees/containers.

For credentials, I have an HTTP/HTTPS mitm [1] that runs on the host with creds, so there are zero secrets in the container.

The end goal is to be able to manage, say, 5-10 Claude instances at a time. I want something like Claude Code for Web, but self-hosted.

[0]: https://github.com/shepherdjerred/monorepo/tree/main/package...

[1]: https://github.com/shepherdjerred/monorepo/pull/156

This is also what I did. Actually, Claude did it.