Hello! For monorepos with Pulumi should I be using Yarn (2+) or npm workspaces? (Or maybe even pnpm?)

Hello @late-night-88915, I once gave it a try to support Yarn v2 with PnP support, but failed. https://github.com/pulumi/pulumi/pull/4349 Have a read on the discussion of this PR and the linked issues.

We are using

yarn

v1 with workspaces and everything seems to work fine.