Individual skill
bun-pro
Bun runtime guidance — fast installs, built-in bundler and test runner, Bun.serve APIs, and migration from Node.
skills/bun-pro/SKILL.md
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## Overview
Bun is an all-in-one JavaScript and TypeScript runtime built on JavaScriptCore that replaces Node plus npm plus your bundler plus your test runner with a single fast binary. Its headline features are near-instant installs, a native bundler, a Jest-compatible test runner, and a high-performance HTTP server API (`Bun.serve`). Bun also aims for broad Node.js compatibility, so most existing projects run with little or no change. This skill covers using Bun effectively, migrating from Node, and knowing where the edges still are.
## When to use
- Starting a new JS/TS project where install speed and a single toolchain matter.
- Migrating a Node project to reduce toolchain complexity (one binary for runtime, bundler, tests).
- Building high-throughput HTTP services or WebSocket servers on `Bun.serve`.
- Speeding up CI with faster installs and test runs.
- Evaluating runtime tradeoffs between Bun, Node, and Deno.
- Bundling frontend assets without a separate webpack/vite setup.
- Writing CLIs where a single compiled binary simplifies distribution.
