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each project should have its own directory
then stack reference path is `org/project/stack`

<@U025964HAJH> thanks for the response.

But, I read that with S3 as backend, `org` is not defined. Or do you know how to get it?

Also, with different paths (folders within the same bucket), tried to reference as `project/stack`. But got `unknown stack`, or something of the sort.

hmm I see, check out the structure of this project, it's pretty big and complex it may give you an answer


<https://github.com/mitodl/ol-infrastructure/blob/f42b329df70b4ec7c59295e0e011100a61775472/src/ol_infrastructure/infrastructure/mongodb/__main__.py#L28>

It looks like you just use only the `stack_name` regardless of the project with S3

Here is a reference to the same stack but from a completely different directory

<https://github.com/mitodl/ol-infrastructure/blob/f42b329df70b4ec7c59295e0e011100a61775472/src/ol_infrastructure/applications/concourse/__main__.py#L40>

I thought it wasn't possible to use StackReferences to stacks in a different file? That is, if you're using an S3 backend, everything has to have the same `backend` URL?

<@U012UJTT55M> are those questions, they sound like affirmations.

From my limited testing, I couldn’t find a way for a given project to get a StackReference on a stack on a different folder. The only working model I could make, was with all the stacks on the same folder.