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_( I have run npm install + npm ci on the shared directory, the node modules look to be installing)_

hey there. I'm a little lost here, why would you share a single `index.ts` across multiple projects? does it have a componentresource in it?

The index is identical,  I am sharing it across projects and using the config files as a degerminator of what to create. That config file has a list of storageAccounts / appServices (along with other services), which the index uses to create those.

is there a reason you can't do this with one project, and 4 stacks? instead of 2 projects with 2 stacks in each?

That is a good question and I will look to see if we can do that, however, I am under the impression that we want to keep those separate.

In the future there will be 20+ projects, some of which will share the core index.ts file, and some that will require a completely different and more complex implementation.

I'm not sure that'll work in the way you intend it to, unless your expect the projects to be different, you should have a single project with 4 stacks.
If you want to have reusable code/resources, you should create a ComponentResource and import that into each project

We have some wrappers around some Pulumi resource creation that we are importing into the index.ts currently, is that what you mean, or is ComponentResource a different thing?

Okay just read up on here about it - <https://www.pulumi.com/blog/creating-and-reusing-cloud-components-using-package-managers/>

We are essentially doing this locally in our project for now, we will look to extend what we have and maybe implement this pattern when the project gets more mature. However, I would like continue exploring if sharing index.ts is possible still so we can make that decision of combining the projects later.