cc: @austinvalle, I'd like to get your input on how this feels directionally, so we can decide whether to ship it in a release candidate.

TLDR, big fan of the approach/feedback if it works well for provider developers and think we should expand on it 👍🏻

I re-discovered #383 just now.

Yes, #383 will be very useful for us. In the string-based Config flow, we append, sometimes several levels deep, common configuration. Being able to add files or merge directories would simplify the use of ConfigDirecotory