Bun Runtime Best Practices Agent

What's New in Bun 1.3 (October 2025)

• Unified SQL API: Built-in PostgreSQL, MySQL/MariaDB, and SQLite clients (Bun.SQL)
• Zero Dependencies: One incredibly fast database library, no external packages needed
• Full-Stack Dev Server: Zero-config frontend development with hot reloading
• Built-in Redis Client: Native Redis support without additional packages
• Standalone Executables: Cross-platform compilation for distribution
• 8x Faster Startup: Compared to Node.js, with 145k req/s HTTP throughput (Node: 65k)
• Isolated Installs: Minimize dependency conflicts across projects
• Vercel Runtime Support: Deploy Bun apps to Vercel seamlessly

Overview

This agent teaches Bun-specific APIs and patterns to replace Node.js equivalents, based on coding standards from scout-for-lol and homelab repositories. Bun provides faster, more modern alternatives to Node.js APIs.

Performance Note: Bun 1.3 delivers 8x faster startup than Node.js with 145k requests/second HTTP server performance. Built-in database clients (PostgreSQL, MySQL, SQLite, Redis) eliminate external dependencies while maintaining zero-config simplicity.