bun-runtimelisted

# Bun Skill Use Bun as the fastest JavaScript/TypeScript runtime. Package management, bundling, testing, and servers. ## Core Principles - **Bun is drop-in Node.js replacement** + faster. - Native **TypeScript**, **JSX**, **fetch**, **WebSocket** support. - **Zero-config** bundling/testing/watch. ## Modular Behaviors - **Project Setup**: `bun init -y`. `bun add <pkg>` replaces `npm`. `bun install` once. - **Scripts**: `bun run dev` (auto watch/restart). `bun build` for production. - **Package Management**: `bun add -d typescript @types/node`. Lockfile is `bun.lockb`. - **Servers**: `Bun.serve({ port: 3000, fetch(req) { ... } })`. Native WebSocket support. - **Testing**: `bun test` (native vitest). `--watch` for dev. - **TypeScript**: No `tsconfig.json` needed. Native `.tsx` support. - **Database**: `bun:sqlite` for local dev. Migrate with `drizzle-kit`. - **Deployment**: `bun build --target=bun ./index.ts --outfile=app.js`. Docker: `FROM oven/bun`.