Help with composition + channel events

[chimericdream]

Summary

I am working on a set of Storybook instances for a monorepo, where several packages have their own independently deployable Storybook setup, and there is also a central "umbrella" Storybook that uses composition/refs to display everything at once.

I was troubleshooting some issues with themed components when I realized that events broadcast from the outer instance of Storybook are not propagated to the composed ones.

How do I set up events/handlers/refs/whatever such that a "child" Storybook instance will receive an event like DARK_MODE_EVENT_NAME from the storybook_dark_mode addon when the user updates the mode in the main "shell" Storybook?

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