pnpm
In plain terms
A disk-efficient JavaScript package manager.
Going deeper
pnpm installs dependencies using a shared content-addressable store and symlinks, saving disk space and speeding installs. It avoids duplicating packages across projects.
Under the hood
Its strict, non-flat node_modules prevents phantom dependencies; excellent for monorepos.
Examples
Node.js, monorepos, fast installs, disk savings, workspaces.
Think of it like...
Like a shared library where projects link to one copy instead of each keeping duplicates.