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A zero-setup local development environment for Windows and macOS.
PHP and Node projects on .test domains with trusted HTTPS, plus MySQL, PostgreSQL and MongoDB, all from one binary.

Mullion is a single binary that gives every project on your machine its own .test domain with a trusted padlock, the right PHP or Node version, and a managed dev server it wakes up on demand. Commands, queue workers, Git and a built-in terminal for each project all live in one control panel — no Docker, no VM, and no config files to write.

cd ~/code/shop       && mullion link   →  https://shop.test
cd ~/code/storefront && mullion link   →  https://storefront.test

Wiki contents

Start

• Getting Started — install, link your first projects, and open the panel
• Installation — Homebrew, Scoop, the install script, and uninstalling

Using Mullion

• Sites and Domains — linking, HTTPS, aliases, wildcard DNS and dev servers
• Project Page — commands, workers, packages, Git, terminal, domains and settings for one project
• Terminal — the built-in terminal, its runtimes and its suggestions
• Git — status, diff, commit, sync, branches, stashes and conflicts
• Databases — MySQL/MariaDB, PostgreSQL, MongoDB, admin tools and backups
• PHP — versions, extensions, php.ini and Composer
• Node — versions, .nvmrc, npm versions and diagnostics
• Ports and SSL — ports and conflicts, the local CA, wildcard DNS
• Settings — TLD, terminal placement, backups and diagnostics

Reference

• CLI Reference — every mullion command, from the real help output
• Troubleshooting — doctor, passwords, certificates, ports and push
• Changelog — what changed in each release
• Building from Source — requirements and build commands for contributors

Install

Download the latest release from Releases — a single file with nothing else to install.

macOS (Homebrew)

brew tap anabiiil/tap
brew trust anabiiil/tap
brew install mullion
mullion setup

Windows (Scoop)

scoop bucket add mullion https://github.com/anabiiil/scoop-bucket
scoop install mullion
mullion setup

See Installation for the one-line script, manual downloads, and what mullion setup does.

More

• Full documentation site: https://anabiiil.github.io/mullion/
• Source and issues: https://github.com/anabiiil/mullion
• Latest release: https://github.com/anabiiil/mullion/releases/latest