changyoungoh

There's a lot of usecase when the peer dependency is also a regular(or peer) dependency in subdependecies, but should remain optional. Especially using subpaths exports. Yarn PnP doesn't show errors...

> Reported by partners (multiple versions of griffel in a bundle). The current idea is to have the DLT on `window`. If using `window` to avoid singleton problem, wouldn't there...

Thanks @manudeli ! Actually, I was planning to adopt [tsd](https://github.com/Shopify/quilt/blob/9b853ceae8eae310408977594146c2d9f7a9f214/documentation/testing-exported-typescript-types.md) for testing complex types like this. If you like, you can do this in this PR, or I will do...

@manudeli I think you're right about seprating to next PR. And yes, you can open an issue, and you can setup up tsd tests in whole monorepo. But with bottom-up...

:+1: