I use Pulumi in a Yarn 3 monorepo. Pulumi doesn't like yarn's package hoisting, so I need to add this to the pulumi program's package.json:

"installConfig": {"hoistingLimits": "workspace"}

Not super happy with it as we have dozen of other packages in the monorepo and disabling hoisting make us pay some penalty (mostly longer CI builds and bigger FS usage for node_modules). Yarn 3 has a new feature that replaces node_modules directories completely: https://yarnpkg.com/features/pnp It's amazingly fast! We do not even need to run "yarn install" anymore (cf https://yarnpkg.com/features/zero-installs) To use it, I need to do this before running the Pulumi program:

require('./.pnp.cjs').setup();

However, I cannot find a way to do this in a TypeScript program. Guess I should configure TS to allow importing .cjs files and import it using an import statement in the TS file? What about native support for Yarn's PnP in Pulumi? Would you accept such a PR? If so, is this the right place: https://github.com/pulumi/pulumi/blob/master/sdk/nodejs/cmd/run/run.ts#L247 ?

@clever-painter-96148 good luck. I tried it once, but failed. The assumption that there is a

node_modules

folder is deep in the implementation of Pulumi core. https://github.com/pulumi/pulumi/pull/4349

Oh, you did seriously try it! I'd be happy finding a way for the pulumi program to be able to find the @pulumi/* packages (i am already refactoring inlined lambdas as separate packages).

finding the Pulumi plugins is iterating over the 

node_modules

 folder in Go code to find the plugin binaries.

This is definitely blocking :(

we use yarn 3 as well, but use the node_modules fallback option over pnp. That works, never gotten pnp to work