monorepo: Is it possible to cache node_modules from another directory?

[dan-cooke]

We are using a monorepo with the following structure

.
| - node_modules
├── packages
│   ├── packageA (hard source package)
|              - node_modules
│   ├── packageB
│   ├── packageC

As we use lerna to hoist all our packages shared dependencies to the root level, the package node_modules, ie. packageA node_modules directory is virtually empty, it just contains a few symlinks to the root level.

Question

Is it possible to cache the node_modules at the root directory instead of the immediate node_modules from packageA?