Hi, although there are no production dependencies at all, using yarn install --production yarn still installs four packages (164 kB) to node_modules/ with the following package.json:

{
  "devDependencies": {
    "webpack": "2.5.1"
  }
}

Shouldn't be node_modules/ empty? Am I missing something? With our full package.json with 26 devDependencies (still no production dependencies) yarn goes to 21 MB.

I am using:

• yarn 0.24.4
• node 6.10.3
• Gentoo Linux

Thank you!