Bun
Bun. Is an all-in-one JavaScript runtime, package manager, test runner, and bundler in a single binary.
Summary
Garden stance: We trial Bun for our estate.
Key points: | Tool | Role |
|——|——|
| bun run | Execute scripts and TypeScript entrypoints |
| bun install | npm-compatible lockfile and registry client |
| bun test | Jest-compatible test runner with fast startup |
| bun build | Bundle JS, TS, and JSX for server or browser targets |
| Bun.serve | HTTP server with WebSocket support |
Compatibility: Bun aims for broad Node API parity but gaps remain in native addons and obscure modules. Run your test suite and integration checks before declaring parity.
Process management: PM2 supports Bun since v1. Same cluster and reload patterns apply as for Node.
Engine difference: JavaScriptCore (Safari) vs V8 (Node). Performance profiles differ; benchmark your app rather than assuming universal wins.
Alternatives: Node.js remains the conservative default JavaScript runtime on the server.
References
Details
| Tool | Role |
|---|---|
bun run | Execute scripts and TypeScript entrypoints |
bun install | npm-compatible lockfile and registry client |
bun test | Jest-compatible test runner with fast startup |
bun build | Bundle JS, TS, and JSX for server or browser targets |
Bun.serve | HTTP server with WebSocket support |
Compatibility: Bun aims for broad Node API parity but gaps remain in native addons and obscure modules. Run your test suite and integration checks before declaring parity.
Process management: PM2 supports Bun since v1. Same cluster and reload patterns apply as for Node.
Engine difference: JavaScriptCore (Safari) vs V8 (Node). Performance profiles differ; benchmark your app rather than assuming universal wins.
Alternatives: Node.js remains the conservative default JavaScript runtime on the server.
References