You can now run your applications on the Bun Runtime on Vercel.Support is available today as a public beta for all projects.From package manager to full runtime supportIn 2023, bun install support on Vercel became their most upvoted feature request ever.Developers wanted Bun, and Vercel delivered. Support for bun install was already added back in 2023.Today, that support goes further.Vercel now has built-in support for the Bun Runtime. This means that you can now run your apps on Bun itself, powered by the same focus on speed and performance.You can enable Bun by adding "bunVersion": "1.x" to your vercel.json.{
"bunVersion": "1.x"
}The value should be "1.x". Vercel manages the minor version.Once set, Vercel detects the configuration, installs Bun if needed, and runs your project natively. This works both locally with vercel dev and in production.Your Next.js, Hono, or custom API routes will now execute on the Bun Runtime. More framework support is coming soon.Built for modern JavaScriptBun combines a JavaScript runtime, bundler, test runner, and package manager into a single fast toolchain. With Bun on Vercel, you can expect:Lower memory and CPU usage. Bun is built in Zig and optimized for efficiency, reducing resource consumption at scale.Access to all Bun APIs. Use Bun.SQL, Bun.S3, Bun.file, Bun.password.hash, or any other Bun API directly in your functions and components.Access to many Web APIs. Bun supports many Web APIs, and aims for full compatibility with Node.js.Bun with Next.jsNext.js works out of the box with the Bun Runtime on Vercel.To use Bun in your build and start commands, add the bun run --bun (or the shorter bun --bun) syntax:package.json{
