Run Bun as a daemon with PM2

PM2 is a process manager that runs your applications as daemons (background processes). It offers process monitoring, automatic restarts, and scaling, and keeps your application running when you deploy it to a cloud-hosted virtual private server (VPS).

You can use PM2 with Bun in two ways: as a CLI option or in a configuration file.

With `--interpreter`

To start your application with PM2 and Bun as the interpreter, run:

terminal

pm2 start --interpreter ~/.bun/bin/bun index.ts

With a configuration file

Alternatively, create a file named pm2.config.js in your project directory and add the following content.

pm2.config.js

module.exports = {
  name: "app", // Name of your application
  script: "index.ts", // Entry point of your application
  interpreter: "bun", // Bun interpreter
  env: {
    PATH: `${process.env.HOME}/.bun/bin:${process.env.PATH}`, // Add "~/.bun/bin/bun" to PATH
  },
};

After saving the file, start your application with PM2.

terminal

pm2 start pm2.config.js

Your JavaScript/TypeScript web server now runs as a daemon with PM2, using Bun as the interpreter.

Overview

Deployment

Runtime & Debugging

Utilities

Ecosystem & Frameworks

HTTP & Networking

WebSocket

Processes & System

Package Manager

Test Runner

Runtime & Debugging

Module System

File System

Utilities

HTML Processing

Binary Data

Streams

Run Bun as a daemon with PM2

With `--interpreter`

With a configuration file

​With --interpreter

​With a configuration file

With `--interpreter`

With a configuration file