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Why Use PNPM #

When using npm or Yarn, if you have 100 projects using a dependency, you will have 100 copies of that dependency saved on disk.
With pnpm, the dependency will be stored in a content-addressable store

Motivation | pnpm

There is a lot more information on the pnpm website including benchmarks showing pnpm is faster than npm and yarn.

📝 Benchmarks of JavaScript Package Managers

Using PNPM With Gatsby #

You will need to install gatsby-plugin-pnpm in order to fix webpack problems.

When using pnpm, building a Gatsby project will fail because pnpm uses a unique node_modules structure, and webpack doesn't know how to resolve packages in it.
This plugin will configure webpack so that it is able to see Gatsby's dependencies.



  *  PNPM Webpack

Notes #

Comparison of node_modules size of this site

873M	./node_modules_yarn
497M	./node_modules_pnpm

The source for the site is available on github.