# Bun install is now supported with zero configuration

**Published:** September 11, 2023 | **Authors:** Steven Salat, Sean Massa, Ethan Arrowood, Chris Barber, Trek Glowacki, Nathan Rajlich, Mariano Cocirio

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Projects using [Bun as a package manager](https://bun.sh/docs/cli/install) can now be deployed to Vercel with zero configuration.

Like yarn, npm, and pnpm, Bun acts as a package manager focused on saving disk space and boosting installation speed. Starting today, Projects that contain a `bun.lockb` file will automatically run `bun install` as the default [Install Command](https://vercel.com/docs/concepts/deployments/build-step#install-command) using `bun@1`.

This change impacts the build phase but not runtime. Therefore, Serverless Functions will not use the Bun runtime yet.

[Check out the documentation](https://vercel.com/docs/concepts/deployments/build-step#install-command) to learn more.

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📚 **More updates:** [View all changelog entries](/changelog/sitemap.md) | [Blog](/blog/sitemap.md)