How to make Actions work with Node workspaces

[jobeland]

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I have a node monorepo in the format of:

root:

• project1
  -- index.ts
  -- package.json
  -- tsconfig.json
• project2
  -- index.ts
  -- package.json
  -- tsconfig.json
• libraries
  -- myHelper.ts
  -- package.json
  -- tsconfig.json
• package.json
• tsconfig.json

And in my root's package.json
... "workspaces": [ "libraries", "project1", "project2" ], ...

This builds absolutely fine locally, and I can nav to ./project1 and build there as well.
When I try to run it in an Action, I can build at the root, and I can build the libraries folder, However when I try to build ./project1 inside of my github workflow, the action fails because of the error
error TS2307: Cannot find module 'libraries/myHelper' or its corresponding type declarations.

I'm currently testing locally on macos and the action is running ubuntu-latest, but I'm unsure why it doesn't work in the workflow when it succeeds locally. I even tried recloning my repo in a fresh directory and it builds fine there as well.

Is there special set ups inside of a Workflow such that Actions is aware of the workspace?

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