Running Bun, PHP 8.4, and Python 3.12 Together Without Nuking Your OS

Welcome to modern full-stack development. Your frontend uses Bun for its blazing-fast package resolution. Your core business API runs on Laravel and PHP 8.4. And because it’s 2026, you just added a local AI microservice that strictly requires Python 3.12. Now comes the hard part: getting them all to run on your laptop at the same time. If you try to install all of these globally, you are asking for trouble. Modifying .bash_profile for pyenv , wrestling with Homebrew to keep PHP 8.4 from overwriting your system's default PHP, and managing Node/Bun paths usually ends in a broken OS and a ruined afternoon. The Docker Trap "Just use Docker!" they say. Docker is flawless for production. But for local development? Spinning up four different containers just to write some code turns your laptop into a jet engine. It drains your battery, eats your RAM, and the file-sync latency across volumes is infuriating when you just want hot-reload to work instantly. We need native execution speeds with co