[TimTheTinker]

We recently solved this problem org-wide with Volta. It allows pinning both the Node and package manager (npm, yarn, etc.) version in each project's package.json file.

Even better, Volta automatically uses whatever node and package manager versions are declared in package.json -- no explicit call required. In other words, `node -v` and `npm -v` always return the version specified in package.json. It's been helpful for working with hundreds of repos and keeping CI and local dev synced on which versions to use automatically.