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Benjamin Woodruff
7b58e5880c
Full motivation and plan here: https://app.notion.com/p/vercel/Turbopack-pnpm-Global-Virtual-Store-383e06b059c480579403ddfd71cc2d40?source=copy_link The goal is to allow `DiskFileSystem` to traverse outside of it's own root to other configured `DiskFileSystem`s when following symlinks. We may allow traversal in other situations in the future, but this is limited to symlink resolution for now. ## Global Virtual Store The motivation for this is to enable [pnpm's Global Virtual Store feature](https://pnpm.io/global-virtual-store) (and there are other package managers doing this, including nub and bun). We'd expose the ability to manually configure this in `next.config.js`, but we should also auto-configure ourselves for popular package managers (or at least make a best effort to do so, the `PNPM_HOME` semantics can be complicated). The `ignoreIfMissing` option is provided for this situation: We can configure a bunch of roots automatically, and they only actually get set up if they exist, the check for directory existence is cheap. ## NFT changes This requires a couple extensions to the `*.nft.json` file format: https://github.com/vercel/next.js/pull/98469 ## Related Issues - #93556 - https://github.com/pnpm/pnpm/issues/14972