The best way to run npm install for nested folders?

Question

What is the most correct way to install npm packages in nested sub folders?

my-app
  /my-sub-module
  package.json
package.json

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Answer 1

Just for reference in case people come across this question. You can now:

• Add a package.json to a subfolder
• Install this subfolder as reference-link in the main package.json:

npm install --save path/to/my/subfolder