How to share .env files among NPM Workspaces?

.env

.env

files are read from a workspace root folder (e.g.

/packages/foo-app/.env

/packages/foo-app/.env

/packages/foo-app/.env

/packages/foo-app/.env), but the

.env

.env

files are not read from the root of the npm workspaces.
This leads me to duplicate the

.env

.env

files for every workspace, or to have some hacky copy script.
How can I have just one set of

.env

.env

files for all workspaces?