pnpm uses hard links and symlinks to save one version of a module only ever once on a disk. When using npm or Yarn for example, if you have 100 projects using the same version of lodash, you will have 100 copies of lodash on disk. With pnpm, lodash will be saved in a single place on the disk and a hard link will put it into the node_modules where it should be installed. As a result, you save space on your disk and you have a lot faster installations!
Use this tag to ask questions about the package manager. If you find any issue or would like to suggest an improvement, please use the GitHub repository issues list.
For more information check the package description and the repository.