Projects using pnpm can now be deployed to Vercel with zero configuration. Vercel is also now sponsoring pnpm to further package manager innovation.
Like Yarn and npm, pnpm is a package manager focused on saving disk space and boosting installation speed by utilizing symlinks. Starting today, Projects that contain a pnpm-lock.yaml file will automatically run pnpm install as the default Install Command using the latest version of pnpm.
Check out the documentation as well.