Our cloud features are closed source in a downstream repo - I think repos that have a very clear separation between OSS and closed are best - this also enforces that our OSS is always a fully-featured product that we develop on the OSS-only version day to day, and our cloud features are only a minor addition on top.
I've historically hit issues with repos that do an `ee` folder and blur the line between what is truly open source and self-hostable, vs need a license/cloud-only. I understand why they do that, but I hope we don't replicate that confusion ourselves :)